关键词: 无线路由, 机会路由, 数据包序列号, 传输协调, 多跳无线网络

Abstract: Transmission Coordination Mechanisms (TCM) for Opportunistic Routing (OR) is used to arrange and coordinate transmissions of OR, and improves end-to-end throughput by reducing the total number of packet transmissions for delivering packets to destination. The existing paradigms are based on batch map partition communication session into packet segments, and transmit each segment in batch mode sequentially. However, the successful rate of transmission coordination is oscillated due to the oscillation of the number of packets transmitted in batch. A packet sequence set-based TCM for OR transmitting packets in continuous batch mode was proposed. The proposed TCM can keep the high successful rate of transmission coordination by maintaining the number of packets transmitted in batch, and therefore improve end-to-end throughput of OR. The simulation results show that the average end-to-end throughput gain of the proposed packet sequence set-based TCM is about 18% over the existing batch map-based TCM.

Key words: wireless routing, opportunistic routing, packet sequence, transmission coordination, multi-hop wireless networks