机会路由传输协调机制组织和协调候选路由节点间的数据包传输,通过减少端到端累计数据包传输次数提高机会路由端到端吞吐量。现有基于batchmap的批量分段式传输协调机制的协调成功率随批量传输的数据包数量的振荡而振荡。针对此问题,提出了基于数据包序列号集合的批量连续式传输协调机制,通过维持每轮批量传输的数据包数量确保传输协调成功率,提高机会路由端到端吞吐量。实验结果显示,基于数据包序列号集合的机会路由传输协调机制能平均提高约18%的端到端吞吐量。
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.