Abstract
Considering that the collision caused by hidden terminal is particularly serious due to the narrow beams of optical devices, the multi-packet reception (MPR) is introduced to mitigate the collisions for IEEE 802.15.7 visible light communication (VLC) system. To explore the impact of MPR on system performance and investigate the interaction between physical (PHY) layer and media access control (MAC) layer, a three dimensional (3D) integrated PHY-MAC analytical model of carrier sense multiple 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 results can be used for the performance optimization of a VLC system with MPR capability.
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This work has been supported by the National Natural Science Foundation of China (No.61071074) and Jilin Provincial Science & Technology Department of China (No.20130413052GH).
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Yu, Hf., Chi, Xf. & Liu, J. An integrated PHY-MAC analytical model for IEEE 802.15.7 VLC network with MPR capability. Optoelectron. Lett. 10, 365–368 (2014). https://doi.org/10.1007/s11801-014-4107-6
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DOI: https://doi.org/10.1007/s11801-014-4107-6