Title :
Comprehensive performance analysis of IEEE 802.15.7 CSMA/CA mechanism for saturated traffic
Author :
Nobar, Sina Khoshabi ; Mehr, Kamal Adli ; Niya, Javad Musevi
Author_Institution :
Univ. of Tabriz, Tabriz, Azerbaijan
Abstract :
IEEE 802.15.7 is a physical and MAC layer standard for visible-light communication. This paper thoroughly analyzes the carrier sensing multiple access with collision avoidance (CSMA/CA) mechanism of the MAC protocol of this standard. The nodal behavior of the CSMA/CA mechanism is modeled using a Markov chain. Performance parameters are derived for saturated traffic in a star topology network. The derived performance metrics of the network include throughput, transmission probability, collision probability, packet discard probability, delay, and power consumption. Furthermore in order to improve the obtained analytic results, a semi-analytic approach is developed. To verify the obtained results, CSMA/CA is completely simulated in a MATLAB environment, and network parameters are derived and compared with analytic models. Simulation results match the analytic ones very closely, which proves the validity of the proposed model.
Keywords :
Markov processes; carrier sense multiple access; optical communication; probability; telecommunication network topology; telecommunication traffic; IEEE 802.15.7 CSMA-CA mechanism; MAC layer standard; MATLAB environment; Markov chain; carrier sensing multiple access-with-collision avoidance mechanism; collision probability; comprehensive performance analysis; delay; network performance metrics; packet discard probability; physical layer standard; power consumption; saturated traffic; star topology network; throughput; transmission probability; visible-light communication; Analytical models; IEEE 802.15 Standards; Markov processes; Media Access Protocol; Probability; Throughput; CSMA/CA; IEEE 802.15.7; Markov model; VLC;
Journal_Title :
Optical Communications and Networking, IEEE/OSA Journal of
DOI :
10.1364/JOCN.7.000062
