Title :
Enhanced Markov Chain Model and Throughput Analysis of the Slotted CSMA/CA for IEEE 802.15.4 Under Unsaturated Traffic Conditions
Author :
Jung, Chang Yong ; Hwang, Ho Young ; Sung, Dan Keun ; Hwang, Gang Uk
Author_Institution :
Sch. of Electr. Eng. & Comput. Sci., Korea Adv. Inst. of Sci. & Technol., Daejeon
Abstract :
In this paper, we propose an analytical Markov chain model of the slotted carrier-sense multiple-access/collision-avoidance (CSMA/CA) protocol for IEEE 802.15.4 under unsaturated traffic conditions. Our proposed Markov chain model reflects the characteristics of the IEEE 802.15.4 medium-access control (MAC) protocol, such as a superframe structure, acknowledgements, and retransmissions with and without limit. We evaluate the throughput performance of the slotted CSMA/CA and verify the analytical model using simulation results.
Keywords :
Markov processes; access protocols; carrier sense multiple access; personal area networks; telecommunication congestion control; IEEE 802.15.4; Markov chain model; carrier-sense multiple-access collision-avoidance protocol; medium-access control protocol; slotted CSMA-CA; throughput analysis; unsaturated traffic conditions; CSMA/CA; Carrier sense multiple access/collision avoidance (CSMA/CA); IEEE 802.15.4; MAC; Throughput; medium-access control (MAC); throughput;
Journal_Title :
Vehicular Technology, IEEE Transactions on
DOI :
10.1109/TVT.2008.923669
