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arXiv · 1103.1453

Cooperative Retransmissions Through Collisions

Jalaluddin Qureshi·Jianfei Cai·Chuan Heng Foh
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Abstract

Interference in wireless networks is one of the key capacity-limiting factors. Recently developed interference-embracing techniques show promising performance on turning collisions into useful transmissions. However, the interference-embracing techniques are hard to apply in practical applications due to their strict requirements. In this paper, we consider utilising the interference-embracing techniques in a common scenario of two interfering sender-receiver pairs. By employing opportunistic listening and analog network coding (ANC), we show that compared to traditional ARQ retransmission, a higher retransmission throughput can be achieved by allowing two interfering senders to cooperatively retransmit selected lost packets at the same time. This simultaneous retransmission is facilitated by a simple handshaking procedure without introducing additional overhead. Simulation results demonstrate the superior performance of the proposed cooperative retransmission.

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Jalaluddin Qureshi, Jianfei Cai, Chuan Heng Foh. 2011-03-08. Cooperative Retransmissions Through Collisions. https://doi.org/10.1109/icc.2011.5962704

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