Optimized transmission coordination mechanisms for opportunistic routing |
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Authors: | Chen Wei Qin Zhiguang Liu Qiao Jin Jing |
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Institution: | School of Computer Science & Engineering University of Electronic Science & Technology of China, Chengdu 610081, P. R. China |
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Abstract: | The successful rate of transmission coordination of opportunistic routing (OR) is analyzed systematically,and then two efficient transmission coordination mechanisms (TCMs) are proposed for OR:a batch sliding window-based TCM and a bit map-based TCM,to reduce the total number of packet transmissions and improve end-to-end throughput for OR.The batch sliding window-based TCM avoids the oscillation of the successful rate of transmission coordination by transmitting packets in continuous batch mode so as to improve the average successful rate of transmission coordination efficiently,while the bit map-based TCM improves end-to-end throughput of OR by reducing the overhead of transmission coordination.Exhaustive simulations show that the average end-to-end throughput gains of the two proposed TCMs are 15.4% and 6.4% over the batch map-based TCM,respectively. |
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Keywords: | opportunistic routing ( OR) batch sliding window transmission coordination multi-hop wireless networks bit map |
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