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| Syndrome-Based Type-I Hybrid ARQ and Its Performance Analysis |
| Zhang Li-jun①; Cao Zhi-gang②; Li Victor O.K. ③ |
| ①School of Electronic & Info. Engineering, Beijing Jiaotong Univ., Beijing 100044, China; ②Dept. of Electronic Engineering, Tsinghua Univ., Beijing 100084, China;③Dept. of Electrical & Electronic Engineering, the Univ. of Hong Kong, Hong Kong, China |
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Abstract A syndrome-based type-I Hybrid ARQ (HARQ) is proposed, where Reed-Solomon code is selected to be the FEC subsystem and the error-detection function is embedded ably in the decoding process. Analytical and simulation results of Bit Error Rate (BER) and throughput efficiency of the system show that syndrome-ahead and syndrome-behind structures are suited to short codes and long codes, respectively. By choosing the maximum of retransmission times, a perfect tradeoff can be obtained between the throughput efficiency and the reliability of the system.
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Received: 20 July 2004
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2006, Vol. 28 
