Energy-efficient analysis of an IEEE 802.11 PCF MAC protocol based on WLAN

被引：6
|
作者：
Guan Zheng [1 ]
Yang Zhi-Jun [1 ,2 ]
He Min [1 ]
Qian Wen-Hua [1 ]
机构：
[1] Yunnan Univ, Sch Informat Sci & Technol, Kunming 650091, Yunnan, Peoples R China
[2] Educ & Sci Inst, Educ Dept Yunnan Prov, Kunming 650223, Yunnan, Peoples R China
来源：
JOURNAL OF AMBIENT INTELLIGENCE AND HUMANIZED COMPUTING | 2019年 / 10卷 / 05期
基金：
美国国家科学基金会;
关键词：
IEEE; 802.11; Point coordination function; Energy efficiency; Theoretical analysis; PERFORMANCE ANALYSIS;
D O I：
10.1007/s12652-018-0684-8
中图分类号：
TP18 [人工智能理论];
学科分类号：
081104 ; 0812 ; 0835 ; 1405 ;
摘要：
The point coordination function (PCF) of the IEEE 802.11 standard represents a well-known medium access control (MAC) protocol providing quality-of-service guarantees in wireless local area networks (WLANs). However, few papers theoretically analyze energy efficiency. This paper presents a Parallel Gated Poll (PGP) access mechanism that exploits the PCF defined in the IEEE 802.11. The basic idea is, during the contention free period, idle stations can save energy by turning into sleep and active stations exchange data packet under a gated service polling scheme to improve the energy efficiency. Besides, the mean cycle analysis model is setup to evaluate the energy efficiency of a typically PCF protocol and PGP protocol. By applying the classic 1-limited and parallel gated polling model, the closed expressions of energy efficiency of PCF and PGP are formulated respectively. Simulations show that our analytical results are very accurate with the simulation results. Both analytical and simulation results show the high energy efficiency of PGP.
引用
收藏
页码：1727 / 1737
页数：11
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