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  • Research Article
  • Open Access

Joint IterativeTx/Rx MMSE-FDE and ISI Cancellation for Single-Carrier Hybrid ARQ with Chase Combining

EURASIP Journal on Advances in Signal Processing20102011:569251

https://doi.org/10.1155/2011/569251

  • Received: 15 April 2010
  • Accepted: 2 September 2010
  • Published:

Abstract

We propose a joint iterative transmit/receive (Tx/Rx) minimum mean square error (MMSE) frequency-domain equalization (FDE) and intersymbol interference cancellation (ISIC) suitable for single-carrier (SC) hybrid automatic repeat request (HARQ) with chase combining (CC). In the proposed scheme, a one-tap transmit MMSE-FDE and an iterative one-tap receive MMSE-FDE and ISIC are employed. Every time the retransmitted packet is received, a series of receive MMSE-FDE, antenna diversity combining, packet combining, and ISIC is carried out in an iterative manner by using updated receive MMSE-FDE weights in each iteration. The transmit MMSE-FDE weight is determined based on the prediction of the degree of residual ISI after the iteration process in a receiver. We theoretically derive a set of transmit and receive MMSE-FDE weights. We show by computer simulation that joint iterative Tx/Rx MMSE-FDE and ISIC achieves better packet error rate (PER) and higher throughput of SC-HARQ than the conventional Rx MMSE-FDE and ISIC.

Keywords

  • High Throughput
  • Quantum Information
  • Iteration Process
  • Minimum Mean Square Error
  • Full Article

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Authors’ Affiliations

(1)
Department of Electrical and Communication Engineering, Graduate School of Engineering, Tohoku University, 6-6-05, Aza-Aoba, Aramaki, Aoba-ku, Sendai 980-8579, Japan

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