Massive Access Control in Machine-to-Machine Communications

Algorithms, Methods, and Applications in Mobile Computing and Communications Pub Date : 1900-01-01 DOI:10.4018/978-1-5225-5693-0.CH006

P. Verma, R. Verma, A. Prakash, R. Tripathi

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引用次数: 1

Abstract

This chapter proposes a new hybrid MAC protocol for direct communication among M2M devices with gateway coordination. The proposed protocol combines the benefits of both contention-based and reservation-based MAC schemes. The authors assume that the contention and reservation portion of M2M devices is a frame structure, which is comprised of two sections: contention interval (CI) and transmission interval (TI). The CI duration follows p-persistent CSMA mechanism, which allows M2M devices to contend for the transmission slots with equal priorities. After contention, only those devices which have won time-slots are allowed to transmit data packets during TI. In the proposed MAC scheme, the TI duration follows TDMA mechanism. Each M2M transmitter device and its corresponding one-hop distant receiver communicate using IEEE 802.11 DCF protocol within each TDMA slot to overcome various limitations of TDMA mechanism. The authors evaluate the performance of the proposed hybrid MAC protocol in terms of aggregate throughput, average transmission delay, channel utility, and energy consumption.

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机器对机器通信中的大规模访问控制

本章提出了一种新的混合MAC协议，用于网关协调的M2M设备之间的直接通信。该协议结合了基于争用和基于保留的MAC协议的优点。假设M2M设备的争用和保留部分是一个帧结构，它由争用间隔(CI)和传输间隔(TI)两部分组成。CI持续时间遵循p-persistent CSMA机制，该机制允许M2M设备以相同的优先级竞争传输时隙。在竞争之后，只有那些赢得时隙的设备才被允许在TI期间传输数据包。在提出的MAC方案中，TI持续时间遵循TDMA机制。每个M2M发送设备及其对应的一跳远端接收器在每个TDMA槽内使用IEEE 802.11 DCF协议进行通信，以克服TDMA机制的各种限制。作者从总吞吐量、平均传输延迟、信道利用率和能耗等方面评估了所提出的混合MAC协议的性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Algorithms, Methods, and Applications in Mobile Computing and Communications

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