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Choosing effects of PHYSICAL CARRIER SENSING in Wireless Adhoc Networks

T. Shankar, Dr. S. Shanmugavel, Y. Sandeep

Abstract


IEEE 802.11 MAC having two methods for medium reservation. 1) virtual carrier sensing and 2) physical carrier sensing. VCS having many drawbacks in wireless ad hoc networks. PCS mechanism can replace the virtual carrier sensing in most practical applications. But choice of PCS threshold plays vital role in ad hoc .networks. Choice of PCS threshold is tradeoff between the throughput and spatial reuse. In this paper we present practical experiments for to see the PCS threshold effects on network throughput.


Keywords


Throughput; Physical Carrier Sensing; Mac; Ad Hoc Network; Ieee 802.11; Simulation

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References


X. Guo, S. Roy, W. Steven Conner, “Spatial Reuse in Wireless Ad-Hoc Networks,” VTC2003.

J. Zhu, X. Guo, L. Lily Yang, W. Steven Conner, S. Roy, Mousumi M. Hazra, “Adapting physical carrier sensing to maximize spatial reuse in 802.11 mesh networks,” Wireless Communications and Mobile Computing Volume 4, Issue 8, P 933-946, December 2004.

K. Xu, M. Gerla, S. Bae, “How effective is the IEEE 802.11 RTS/CTS handshake in ad hoc networks?” GLOBECOM '02, Nov. 2002.

F. A. Tobagi and L. Kleinrock, "Packet Switching in Radio Channels: Part II - The Hidden Terminal Problem in Carrier Sense Multiple Access and the Busy Tone Solution," vol. COM 23, no. 12, pp. 1417--1433, 1975.

J. Zhu, X. Guo, L. L. Yang, and W. S. Conner, “Leveraging Spatial Reuse in 802.11 Mesh Networks with Enhanced Physical Carrier Sensing,” ICC'04, June 2004.

Theodore S. Rappaport, Wireless Communications, Principles and Practices, 2nd Ed. Prentice Hall, 2002. ISBN 0 13-042232-0.

IEEE P802.11. Standard for Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications, 1997.

IEEE P802.11b. Supplement to Standard IEEE 802.11, Higher speed Physical Layer (PHY) extension in the 2.4GHz band, 1999.

IEEE P802.11a. Supplement to Standard IEEE 802.11, High speed Physical Layer (PHY) extension in the 5GHz band, 1999.

K. Fall and E. K. Varadhan, “Ns notes and documentation.”[Online]. Available: http://www.isi.edu/nsnam/ns/

D. Shukla, L. C. Wadia, S. Iyer, “Mitigating the exposed node problem in IEEE 802.11 ad hoc networks,” IEEE ICCCN,October 2003

F. Ye, S. Yi and B. Sikdar, ``Improving Spatial Reuse of IEEE802.11 Based Ad Hoc Networks,'' GLOBECOM '03. December2003.

J. Zhu, X. Guo, L. Lily Yang, W. Steven Conner, S. Roy, Mousumi M.Hazra, “Adapting physical carrier sensing to maximize spatial reuse in 802.11 mesh networks,” Wireless Communications and Mobile Computing Volume 4, Issue 8, P933-946, December 2004

X. Yang and N. H. Vaidya, "On Physical Carrier Sensing in Wireless Ad Hoc Networks", INFOCOM 2005, March 2005.

F. Cali, M.Conti, and E.Gregori, “Dynamic tuning of the IEEE 802.11 protocol to achieve a theoretical throughput limit,”IEEE/ACM Transactions on Networking, Vol. 8, No. 6, Dec.2000

S. Gobriel, R. Melhem, and D. Mosse., "A unified interference/collision analysis for power-aware adhoc networks,"INFOCOM 2004, March 2004.

J. Deng , B. Liang, and P. K. Varshney, "Tuning the Carrier Sensing Range of IEEE 802.11 MAC," Globecom'04, November 29 - December 3, 2004

D. Stoyan and W.S. Kendall, “Stochastic geometry and its applications,” Chapter 2, Chichester ; New York : J.Wiley,C1995

IEEE P802.11b. Supplement to Standard IEEE 802.11, Higher speed Physical Layer (PHY) extension in the 2.4GHz band,1999.

G. Bianchi. "Performance analysis of the IEEE 802.11 distributed coordination function." IEEE JSIC. vol. 18. March 2000.

J. Thornson. B.Bms. E. Cooper, and 1. Gilhen. "An integrated 802 .11a Baseband and MAC processor:' in ISSCC. (Silo Fransisco.CA). February 2002.


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