Packet combining in frequency-hop spread-spectrum communication systems

被引:7
作者
Daraiseh, AGA [1 ]
Baum, CW
机构
[1] Nortel Technol, Wireless Syst Engn Dept, Richardson, TX 75082 USA
[2] Clemson Univ, Dept Elect & Comp Engn, Clemson, SC 29634 USA
关键词
frequency-hop spread spectrum; hybrid ARQ; packet combining;
D O I
10.1109/26.655400
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The performance of frequency-hop spread-spectrum (FHSS) communication systems using hybrid automatic-repeat-request (ARQ) can be improved by combining current and prior transmissions at the receiver, Two methods for combining packets in systems that employ interleaving and Reed-Solomon (RS) coding are presented and analyzed for the partial-band interference channel, These methods use majority logic combining at the codeword level to make retransmission decisions, Bounded distance errors-and erasures decoding and erasure generation by means of Viterbi's ratio threshold test (RTT) are incorporated in the analysis, Results of the analysis show that, with comparable packet error probabilities, the packet-combining schemes provide significant gains in throughput when compared with systems that do not employ combining.
引用
收藏
页码:23 / 33
页数:11
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