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Recent Advances in Computer Science and Communications

Author(s): Bhupendra Singh* and Rajesh Mishra

DOI: 10.2174/2213275912666190103141939

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Performance Analysis of DCF- Two Way Handshake vs RTS/CTS During Train-Trackside Communication in CBTC based on WLAN802.11b

Page: [345 - 352] Pages: 8

  • * (Excluding Mailing and Handling)

Abstract

Background: Wireless Local Area Network (WLAN) is used primarily in CBTC because of easy availability of commercial WLAN equipment. In present scenario, WLAN Medium Access Control (MAC) protocol is a well-known protocol which is used to satisfy real-time traffic and delay- sensitive applications. The bidirectional train-trackside communication is the fundamental key of train control in CBTC.

Methods: DCF describes two basic techniques used for packet transmission: First technique is a Two Way Handshake (TWH) mechanism and another is Four Way Handshake (FWH) mechanisms. RTS/CTS FWH protocol specified by IEEE802.11b is introduced to rectify the Hidden Node Problem (HNP) encounters in TWH protocol. That is why the TWH mechanism of DCF technique suffers from higher average packet delay time when this protocol is applied to CBTC. DCF- Four Way Handshake (FWH), Request To Send (RTS) and Clear To Send (CTS) delay model is proposed to develop Communication Based Train Control (CBTC) system.

Results: FWH is applied in CBTC to overcome the packet delay and throughput limitations of Two Way Handshake (TWH) mechanism of distributed coordination function (DCF) based technique. An experiment is designed to simulate and compare the performance of RTS/CTS delay model against TWH mechanism of DCF.

Conclusion: It was found that the Average packet delay is slightly higher and throughput is lesser in RTS/CTS in comparison to TWH method. By comparing the performance of these two medium access mechanism in CBTC it was found that for multiple retransmissions with various data rates the RTS/CTS model had better packet delay time than TWH.

Keywords: CBTC, CSMA/CA, DCF, FER, MAC, RTS/CTS, throughput, WLAN.

Graphical Abstract

[1]
B. Bu, F.R. Yu, and T. Tang, "Performance improved methods for communication-based train control systems with random packet drops", IEEE Trans. Intell. Transp. Syst., vol. 15, no. 3, pp. 1179-1192, January 2014.
[2]
G. Bianchi, "Performance analysis of the IEEE 802.11 distributed coordination function", IEEE J. Sel. Areas Comm., vol. 18, no. 3, pp. 535-547, 2006.
[3]
H. Al-Mefleh, and J.M. Chang, "Turning hidden nodes into helper nodes in IEEE 802.11 wireless lan networks", NETWORKING'08 Proceedings of the 7th international IFIP-TC6 networking conference on Ad-Hoc and sensor networks, wireless networks, next generation internet,, pp. 824-835, 2008.
[4]
P. Chatzimisios, V. Vitsas, and A.C. Boucouvalas, "Throughput and delay analysis of IEEE 802.11 protocol", Proceedings 3rd IEEE International Workshop on System-on-Chip for Real-Time Applications, pp. 168-174, October 2002.
[5]
X. Wang, and K. Kar, "Throughput modelling and fairness issues in CSMA/CA based ad-hoc networks", Proceedings IEEE 24th Annual Joint Conference of the IEEE Computer and Communications Societies, vol. 1, pp. 23-34, March 2005.
[6]
G. Bianchi, S. Choib, and I. Tinnirello, Performance Study of IEEE 802.11 DCF and IEEE 802.11e EDCA., University Press, 2008.
[7]
L. Zhu, F.R. Yu, B. Ning, and T. Tang, "Handoff management in communication based train control networks using stream control transmission protocol and IEEE 802.11p WLANs", EURASIP J. Wirel. Comm., 2012.
[8]
H. Alkadeki, X. Wang, and M.O. Odetayo, "Estimation of medium access control layer packet delay distribution for IEEE 802.11", CoRR, abs/1401, p. 2489, 2014.
[9]
J. Farooq, and J. Soler, "Radio communication for Communications-Based Train Control (CBTC): A tutorial and survey", IEEE Commun. Surveys Tuts., vol. 19, no. 3, pp. 1377-1402, 2017.
[10]
M.M. Carvalho, and J.J. Garcia-Luna-Aceves, "Delay analysis of IEEE 802.11 in Single-Hop Networks", ICNP, pp. 146-155, November 2003.
[11]
Chen. Lijie, and Tao. Tang, "Research on the influence of communication delay on safety location of train in communication based train control (CBTC)", 2009 IEEE Intelligent Vehicles Symposium, pp. 940-944, 2009.
[12]
X. Qiu, and K. Chawla, "On the performance of adaptive modulation in cellular systems", IEEE Trans. Commun., vol. 47, no. 6, pp. 884-895, June 1999.
[13]
G. Song, and Y. Li, "Cross-layer optimization for OFDM wireless networks-part I: theoretical framework", IEEE Trans. Wirel. Commun., vol. 4, no. 4, pp. 614-624, April 2005.
[14]
L. Zhu, F.R. Yu, B. Ning, and T. Tang, "Cross-layer handoff design in MIMO- enabled WLAN for communication based train control (CBTC) systems", IEEE J. Sel. Areas Comm., vol. 30, no. 4, pp. 719-728, April 2012.
[15]
S.R. Theodore, “Wireless Communications”, Publishing House of Electron Industry (PHEI): Beijing, China, 2012.