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arXiv 1611.04419cs.NI
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泊松业务下无线全双工系统的缓冲时间策略

Buffering Time Strategies for Wireless Full-duplex Systems under Poisson Traffic

Makoto Kobayashi, Shunsuke Saruwatari, Takashi Watanabe

摘要:

全双工无线通信具有通过减少传输的频带占用来使无线网络的容量加倍的潜力。然而,全双工能力不能总是减少频带占用,因为实际业务没有完全缓冲。在等待分组到达相对节点时的缓冲时间预计将减少频带占用。在这项研究中,我们提供了第一个理论分析的频带占用和平均等待时间的全双工通信下,没有完全缓冲的流量,是基于排队论的缓冲时间,以及封闭形式的结果。我们还提出了频带占用和平均等待时间的模拟结果。在这项研究中提供的基本分析表明,如何平均等待时间和频带占用的缓冲时间的影响。当缓冲时间是分组长度的一半时,频带占用减少约15%。此外,在非对称流量下,研究结果表明,缓冲时间不应该设置在节点相比,具有更高的流量强度。这些结果支持全双工介质访问控制协议和设备的设计。

英文摘要:

Full-duplex wireless communication has the potential to double the capacity of wireless networks by reducing the band occupancy of transmissions. However, a full-duplex capability cannot always reduce the band occupancy because the real traffic is not fully buffered. Buffering time while waiting for a packet to arrive at an opposite node is expected to reduce the band occupancy. In this study, we provide the first theoretical analysis of band occupancy and the mean waiting time for full-duplex communication with and without buffering time under traffic that is not fully buffered based on queueing theory, as well as the closed-form results. We also present the results of simulations of band occupancy and the mean waiting time. The basic analysis provided in this study shows how the mean waiting time and band occupancy are affected by the buffering time. When the buffering time is half the packet length, the band occupancy is reduced by approximately 15 %. In addition, under asymmetrical traffic, the results suggest that the buffering time should not be set at the node who has a higher traffic intensity compared with another node. These results support the design of a full-duplex medium access control protocol and devices.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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