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CARA: Collision-Aware Rate Adaptation for IEEE 802.11 WLANs  

Kim, Jong-Seok (서울대학교 전기공학부 멀티미디어 무선통신망 연구실)
Kim, Seong-Kwan (서울대학교 전기공학부 멀티미디어 무선통신망 연구실)
Choi, Sung-Hyun (서울대학교 전기공학부 멀티미디어 무선통신망 연구실)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.31, no.2A, 2006 , pp. 154-167 More about this Journal
Abstract
Today's IEEE 802.11 WLANs(Wireless LANs) provide multiple transmission rates so that different rates can be exploited in an adaptive manner depending on the underlying channel condition in order to maximize the system performance. Many rate adaptation schemes have been proposed so far while most(if not all) of the commercial devices implement a simple open-loop rate adaptation scheme(i.e., without feedback from the receiver), called ARF(Automatic Rate Fallback) due to its simplicity. A key problem with such open-loop rate adaptation schemes is that they do not consider the collision effect, and hence, malfunction severely when many transmission failures are due to collisions. In this paper, we propose a novel rate-adaptation scheme, called CARA(Collision-Aware Rate Adaptation). The key idea of CARA is that the transmitter station combines adaptively the Request-to-Send/Clear-to-Send(RTS/CTS) exchange with the Clear Channel Assessment(CCA) functionality to differentiate frame collisions from frame transmission failures cause by channel errors. Therefore, compared with other open-loop rate adaptation schemes, CATA is more likely to make the correct rate adaptation decisions. Through extensive simulation runs, we evaluate our proposed scheme to show that our scheme yields significantly higher throughput performance than the existing schemes in both static and time-varying fading channel environments.
Keywords
Wireless IAN; collision; channel error; rate adaptation;
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1 IEEE 802.11b, Part 11: Wireless LAN Medium Access Control(MAC) and Physical Layer(PHY) specifications: Higher-speed Physical Layer Extension in the 2.4 GHz Band, Supplement to IEEE 802.11 Standard, Sep. 1999
2 Javier del Prado Pavon and Sunghyun Choi, 'Link Adaptation Strategy for IEEE 802.11 WLAN via Received Signal Strength Measurement,' in Proc. IEEE ICC'03, Anchorage, AK, May 2003
3 Gavin Holland, Nitin Vaidya, and Paramvir Bahl, 'A Rate-Adaptive MAC Protocol for Multi-Hop Wireless Networks,' in Proc. ACM MobiCom '01, Rome, Italy, Jul. 2001
4 Ad Kamennan and Leo Monteban, 'WaveLAN-II: a high-performance Wireless LAN for the Unlicensed Band,' Bell Labs Technical Journal, vol.2, no.3, pp.118-133, Aug. 1997   DOI   ScienceOn
5 Daji Qiao, Sunghyun Choi, and Kang G. Shin, 'Goodput Analysis and Link Adaptation for IEEE 802.11a Wireless LANs,' IEEE Trans. On Mobile Computing(TMC), vol. 1, no. 4, pp. 278-292, Oct.-Dec. 2002   DOI   ScienceOn
6 Daji Qiao and Sunghyun Choi, 'Fast-Responsive Link Adaptation for IEEE 802.11 WLANs,' in Proc. IEEE ICC '05, Seoul, Korea, May 2005
7 IEEE 802.11k/D2.0, Part 11: Wireless LAN Medium Access Control(MAC) and Physical layer(PHY) specifications: Radio Resource Measurement, Draft Supplement to IEEE 802.11 Standard, Draft 2.0, Feb. 2005
8 Daji Qiao and Sunghyun Choi, 'Goodput Enhancement of IEEE 802.11a Wireless LAN via Link Adaptation,' in Proc. IEEE ICC '01, Jun. 2001, pp. 1995-2000
9 IEEE 802.11a, Part 11: Wireless LAN Medium Access Control(MAC) and Physical Layer(PHY) specifications: High-speed Physical Layer in the 5 GHz Band, Supplement to IEEE 802.11 Standard, Sep. 1999
10 MADWIFI, http://sourceforge.net/projects/madwifi/, online link. Wireless LAN via Link Adaptation,' in Proc. IEEE ICC'01, Jun. 2001, pp. 1995-2000
11 P. Chevillat, J. Jelitto, A. Noll Barreto, and H. L. Truong, 'A Dynamic Link Adaptation Algorithm for IEEE 802.11a Wireless LANs,' in Proc. IEEE ICC'03, Anchorage, AK, pp. 1141-1145, May 2003
12 M. Heusse, F. Rousseu, G. Berger-Sabbatel, and A. Duda, 'Performance Anomaly of 802.11b,' in Proc. IEEE INFOCOM '03, vol. 2, pp. 836-843, Mar. 2003
13 Sunghyun Choi and Javier del Prado, '802.11g CP: A Solution for IEEE 802.11g and 802.11b Inter-Working,' in Proc. IEEE VTC'03-Spring, Jeju, Korea, April 2003
14 IEEE 802.11e/D13.0, Part 11: Wireless LAN Medium Access Control(MAC) and Physical layer(PHY) specifications: Medium Access Control(MAC) Enhancements for Quality of Service(QoS), Draft Supplement to IEEE 802.11 Standard, Draft 13.0, Jan. 2005
15 G. Bianchi, 'Performance Analysis of the IEEE 802.11 Distributed Coordination Function,' IEEE Journal of Selected Area in Communications, vol. 18, no. 3, March 2000
16 B. Sadeghi, V. Kanodia, A. Sabharwal and E. Knightly, 'Opportunistic Media Access for Multirate Ad Hoc Networks,' in Proc. ACM Mobi-Com '02, Atlanta, Georgia, Jul. 2002
17 M. Carroll, T. A. Wysocki, 'Fading Characteristics for Indoor Wireless Channels at 5GHz Unlicensed Bands,' in Proc. Sympo TIC'03, pp 102-105, Bratislava, Slovakia, Oct. 2003
18 T. S. Rappaport, Wireless Communications: Principle and Practice, Englewood Cliffs, NJ: Prentice-Hall, 1996
19 IEEE 802.11g, Part 11: Wireless LAN Medium Access Control(MAC) and Physical Layer(PHY) specifications: Further Higher Data Rate Extension in the 2.4 GHz Band, Supplement to IEEE 802.11 Standard, Jun. 2003
20 Ratish J. Punnoose, Pavel V. Nikitin, and Daniel D. Stancil, 'Efficient Simulation of Ricean Fading within a Packet Simulator,' in Proc. IEEE VTC '00-Fall, Sept. 2000
21 Intersil, 'HFA3861B; Direct Sequence Spread Spectrum Baseband Processor,' January 2000
22 IEEE 802.11, Part 11: Wireless LAN Medium Access Control(MAC) and Physical Layer(PHY) specifications, IEEE Std 802.11-1999, Aug. 1999
23 Sunwoong Choi, Kihong Park, and Chongkwon Kim, 'On the Performance Characteristics of WLANs: Revisited,' in Proc. ACM SIGMETRICS '05, Jun. 2005
24 'The Network Simulator-ns-2,' http://www.isi.edu/nsnam/ns/, online link