Saturation Throughput Analysis for an Ideal Loss Differentiated DCF over Wireless Lan
In a real wireless channel,both a channel bit error and a collision between competition stations can cause a data frame loss.Moreover,DCF always assumes that a data frame loss is due to the collision and the contention window will double in next transmission.In fact,we think that the contention window shall be difference between channel bit error and collision.In this paper,we propose a ideal mechanism LD-DCF which can completely differentiate between the two reasons of a data frame loss.An analytical model is given to demonstrate the efficiency of LD-DCF.NS-2 simulation is also used to validate the LD-DCF.By the theoretical and simulation results,the LD-DCF can improve the throughput significantly,especial for the high channel bit error and low contending stations (i.e.the low network traffic).
IEEE 802.11 CSMA/CA DCF Collision Aware
Hongyuan Chen Runtong Geng
School of Electronic and Optical Engineering Nanjing University of Science and Technology(NJUST)Nanjing, China, 210094
国际会议
沈阳
英文
968-971
2012-07-27（万方平台首次上网日期，不代表论文的发表时间）