An integrated PHY-MAC analytical model for IEEE 802.15.7 VLC network with MPR capability  

作　　者：于海凤 迟学芬 刘健 

机构地区：[1]College of Communications Engineering, Jilin University

出　　处：《Optoelectronics Letters》2014年第5期365-368,共4页光电子快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(No.61071074);Jilin Provincial Science&Technology Department of China(No.20130413052GH)

摘　　要：Considering that the collision caused by hidden terminal is particularly serious due to the narrow beams of optical de- vices, the multi-packet reception （MPR） is introduced to mitigate the collisions for IEEE 802.15.7 visible light com- munication （VLC） system. To explore the impact of MPR on system performance and investigate the interaction be- tween physical （PHY） layer and media access control （MAC） layer, a three dimensional （3D） integrated PHY-MAC analytical model of carrier sense muttiple access/collision avoidance （CSMA/CA） is established based on Markov chain theory for VLC system, in which MPR is implemented through the use of orthogonal code sequence. Throughput is derived to evaluate the performance of VLC system with MPR capability under imperfect optical channel. The re- sults can be used for the performance optimization of a VLC system with MPR capability.

关 键 词：Medium access control 

分 类 号：TN929.1[电子电信—通信与信息系统]