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  1. Multicarrier CDMA (MC-CDMA) has become a promising candidate for future wireless multimedia communications for its robustness to frequency-selective fading and its flexibility for handling multiple data rates....

    Authors: Mizhou Tan, Christian Ibars and Yeheskel Bar-Ness
    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:906270
  2. An efficient method for equalization of downlink CDMA channels is presented. By describing the observed signal in terms of a state-space model, the method employs the Kalman filter (KF) to achieve an unbiased ...

    Authors: Hoang Nguyen, Jianzhong Zhang and Balaji Raghothaman
    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:750826
  3. Relying on block-symbol spreading and judicious design of user codes, this paper builds on the generalized multicarrier (GMC) quasisynchronous CDMA system that is capable of multiuser interference (MUI) elimin...

    Authors: Georgios B. Giannakis, Paul A. Anghel and Zhengdao Wang
    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:613517
  4. The use of code division multiple access (CDMA) makes third-generation wireless systems interference limited rather than noise limited. The research for new methods to reduce interference and increase efficien...

    Authors: Enrico Del Re, Lorenzo Mucchi and Luca Simone Ronga
    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:562629
  5. This paper develops a new multiuser detector based on a network of kalman filters (NKF) dealing with multiple access-interference (MAI), intersymbol Interference (ISI), and an impulsive observation noise. The ...

    Authors: Bessem Sayadi and Sylvie Marcos
    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:134082
  6. A novel space-time adaptive near-far robust code-synchronization array detector for asynchronous DS-CDMA systems is developed in this paper. There are the same basic requirements that are needed by the convent...

    Authors: Chia-Chang Hu
    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:132973
  7. A low-complexity blind timing algorithm is proposed to estimate timing offset in OFDM systems when multiple symbols are received (the timing offset estimation is independent of the frequency offset one). Thoug...

    Authors: Tiejun Lv, Jie Chen and Hua Li
    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:973563
  8. A multiple-input multiple-output (MIMO) wireless communication system with orthogonal frequency division multiplexing (OFDM) is expected to be a promising scheme. However, the estimation of the carrier frequen...

    Authors: Jun Li, Guisheng Liao and Qinghua Guo
    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:928346
  9. In DSP-based IQ modulators generating CPFSK signals, shortcomings in the implementation of the analog reconstruction filters result in the loss of the constant envelope property of the output CPFSK signal. The...

    Authors: A. G. K. C. Lim, V. Sreeram and G. Wang
    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:727038
  10. A robust fingerprint recognition algorithm should tolerate the rotation and translation of the fingerprint image. One popular solution is to consistently detect a unique reference point and compute a unique re...

    Authors: Manhua Liu, Xudong Jiang and Alex Chichung Kot
    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:634350
  11. Text-independent speaker recognition systems such as those based on Gaussian mixture models (GMMs) do not include time sequence information (TSI) within the model itself. The level of importance of TSI in spea...

    Authors: John S. D. Mason, Nicholas W. D. Evans, Robert Stapert and Roland Auckenthaler
    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:582548
  12. This paper presents a novel computationally efficient voice activity detection (VAD) algorithm and emphasizes the importance of such algorithms in distributed speech recognition (DSR) systems. When using VAD a...

    Authors: Damjan Vlaj, Bojan Kotnik, Bogomir Horvat and Zdravko Kačič
    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:561951
  13. We present an artificial neural-network- (NN-) based smart interface framework for sensors operating in harsh environments. The NN-based sensor can automatically compensate for the nonlinear response character...

    Authors: Jagdish C. Patra, Ee Luang Ang, Narendra S. Chaudhari and Amitabha Das
    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:498294
  14. We present an efficient physical realization method of particle filters for real-time tracking applications. The methodology is based on block-level pipelining where data transfer between processing blocks is ...

    Authors: Sangjin Hong, Petar M. Djurić and Miodrag Bolić
    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:489656
  15. Speaker identification systems perform well under the neutral talking condition; however, they suffer sharp degradation under the shouted talking condition. In this paper, the second-order hidden Markov models...

    Authors: Ismail Shahin
    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:375912
  16. This paper examines erasure resilience of oversampled filter bank (OFB) codes, focusing on two families of codes based on cosine-modulated filter banks (CMFB). We first revisit OFBs in light of filter bank and...

    Authors: Slavica Marinkovic and Christine Guillemot
    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:313270
  17. Time-hopping ultra-wideband technology presents some very attractive features for future indoor wireless systems in terms of achievable transmission rate and multiple access capabilities. This paper develops a...

    Authors: Galo Nuño-Barrau and José M. Páez-Borrallo
    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:937320
  18. The development of ultra-wideband (UWB) communications is impeded by the drastic transmitted power limitations imposed by regulation authorities due to the "polluting" character of these radio emissions with r...

    Authors: Alain Sibille
    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:919625
  19. Spectrum is presently one of the most valuable goods worldwide as the demand is permanently increasing and it can be traded only locally. Since the United States Federal Communications Commission (FCC) has ope...

    Authors: Werner Sörgel and Werner Wiesbeck
    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:843268
  20. The application of ultra-wideband (UWB) technology to low-cost short-range communications presents unique challenges to the communications engineer. The impact of the US FCC's regulations and the characteristi...

    Authors: Robert A. Scholtz, Davida M. Pozar and Won Namgoong
    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:758540
  21. We present an efficient, low-cost implementation of time-hopping impulse radio that fulfills the spectral mask mandated by the FCC and is suitable for high-data-rate, short-range communications. Key features a...

    Authors: Andreas F. Molisch, Ye Geoffrey Li, Yves-Paul Nakache, Philip Orlik, Makoto Miyake, Yunnan Wu, Sinan Gezici, Harry Sheng, SY Kung, H Kobayashi, H. Vincent Poor, Alexander Haimovich and Jinyun Zhang
    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:683054
  22. The design of a class of jitter-robust, Hermite polynomial-based, orthogonal pulses for ultra-wideband impulse radio (UWB-IR) communications systems is presented. A unified and exact closed-form expression of ...

    Authors: Giuseppe Thadeu Freitas de Abreu, Craig John Mitchell and Ryuji Kohno
    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:642192
  23. The error probability and capacity of a time-hopping ultra-wideband (UWB) communication system with receive diversity are investigated. We consider pulse amplitude modulation (PAM) and pulse-position modulatio...

    Authors: Hao Zhang and T. Aaron Gulliver
    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:587486
  24. This work aims at characterizing the second-order statistics of indoor ultra-wideband (UWB) channels using channel sounding techniques. We present measurement results for different scenarios conducted in a lab...

    Authors: Aawatif Menouni Hayar, Raymond Knopp and Rachid Saadane
    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:549584
  25. We present a new analog circuit exhibiting high bandwidth and low distortion, specially designed for signal correlation in an ultra-wideband receiver front end. The ultra-wideband short impulse signals are cor...

    Authors: Chunjiang Tu, Boan Liu and Hongyi Chen
    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:546896
  26. In a pulse-position modulation-based ultra-wideband (UWB) communication system, multiple access is enabled by assigning unique time-hopping sequences to different users. Each user's data information is carried...

    Authors: Zhengyuan Xu, Jin Tang and Ping Liu
    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:520532
  27. The problem of asynchronous direct-sequence code-division multiple-access (DS-CDMA) detection over the ultra-wideband (UWB) multipath channel is considered. A joint synchronization, channel-estimation, and mul...

    Authors: Lars P. B. Christensen
    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:475431
  28. We present Cramér-Rao lower bounds (CRLBs) for the synchronization of UWB signals which should be tight lower bounds for the theoretical performance limits of UWB synchronizers. The CRLBs are investigated for ...

    Authors: Jian Zhang, Rodney A. Kennedy and Thushara D. Abhayapala
    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:293649
  29. Authors: Maria-Gabriella Di Benedetto, Thomas Kaiser and Norbert Schmidt
    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:250682
  30. We analyze the performance of ultra-wideband (UWB) multiple-input multiple-output (MIMO) systems employing various modulation and multiple access (MA) schemes including time-hopping (TH) binary pulse-position ...

    Authors: W. Pam Siriwongpairat, Masoud Olfat and K. J. Ray Liu
    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:237098
  31. This paper presents a novel UWB communications system using double FM: a low-modulation index digital FSK followed by a high-modulation index analog FM to create a constant-envelope UWB signal. FDMA techniques...

    Authors: John F.M. Gerrits, Michiel H.L. Kouwenhoven, Paul R. van der Meer, John R. Farserotu and John R. Long
    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:189150
  32. Impulse radio-based ultra-wideband (UWB) communication systems allow multiple users to access channels simultaneously by assigning unique time-hopping codes to individual users, while each user's information s...

    Authors: Zhengyuan Xu, Ping Liu and Jin Tang
    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:174058
  33. Authors: Antonio Ortega, Lang Tong, Haitao Zheng and Michele Zorzi
    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:954095
  34. We present and evaluate the performance of a reduced complexity variation to the source encoding assisted multiple access (SEAMA) protocol for integrating voice and data over a wireless network. This protocol,...

    Authors: Andres Kwasinski, Mehdi Alasti, K. J. Ray Liu and Nariman Farvardin
    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:901858
  35. Delivering multimedia over wireless Internet is a very challenging task. Multimedia delivery inherently has strict quality of service (QoS) requirement on bandwidth, delay, and delay jitter. However, the curre...

    Authors: Qian Zhang, Fan Yang and Wenwu Zhu
    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:896852
  36. Joint source-channel coding has been introduced recently as an element of QoS support for IP-based wired and wireless multimedia. Indeed, QoS provisioning in a global mobility context with highly varying chann...

    Authors: Gagan Rath and Christine Guillemot
    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:685601
  37. An approximate analytical formulation of the resource allocation problem for handling variable bit rate multiclass services in a cellular round-robin carrier-hopping multirate multicarrier direct-sequence code-di...

    Authors: Tung Chong Wong, Jon W. Mark and Kee-Chaing Chua
    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:602187
  38. In this paper, we propose a joint cross-layer design for wireless quality-of-service (QoS) content delivery. Central to our proposed cross-layer design is the concept of adaptation. Adaptation represents the abil...

    Authors: Jie Chen, Tiejun Lv and Haitao Zheng
    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:545384
  39. In mobile ad hoc radio networks, mechanisms on how to access the radio channel are extremely important in order to improve network efficiency. In this paper, the load adaptable medium access control for ad hoc...

    Authors: Marc Realp and Ana I. Pérez-Neira
    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:527237
  40. This paper jointly addresses the problem of power control and scheduling in ad hoc networks supporting multicast traffic. First, we present a distributed algorithm which, given the set of multicast transmitter...

    Authors: Kang Wang, Carla-Fabiana Chiasserini, Ramesh R. Rao and John G. Proakis
    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:479462
  41. A medium access control (MAC) protocol for spread-spectrum ad hoc networks with dynamic channel allocation (DCA) is presented. DCA can support large systems with a smaller number of channels by dynamically ass...

    Authors: Amit Butala and Lang Tong
    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:385798
  42. In the context of frame-based multimedia wireless transmission, a link adaptation strategy is proposed, assuming that the source decoder may accept some remaining errors at the output of the channel decoder. B...

    Authors: Charly Poulliat, Inbar Fijalkow and David Declercq
    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:258790
  43. Authors: Joe C. Chen and Amin G. Jaffer
    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:430782
  44. Determining the number of sources in a received wave field is a well-known and a well-investigated problem. In this problem, the number of sources impinging on an array of sensors is to be estimated. The commo...

    Authors: Eran Fishler, Michael Grosman and Hagit Messer
    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:154138

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