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Optimal Polling Method for Improving PCF MAC Performance in IEEE 802.11 Wireless LANs  

Choi, Woo-Yong (Department of Industrial and Management Systems Engineering, Dong-A University)
Lee, Sang-Wan (Department of Industrial and Management Systems Engineering, Dong-A University)
Publication Information
Journal of Korean Institute of Industrial Engineers / v.32, no.1, 2006 , pp. 1-8 More about this Journal
Abstract
A modified PCF(Point Coordination Function) protocol with the optimal polling sequence is defined in detail and shown to improve the efficiency of the conventional PCF protocol in IEEE 802.11 wireless LAN standard. The problem for the optimal polling sequence is formulated as TSP(Travelling Salesman Problem) with the distance values of 1's or 0's. Numerical examples show that the optimal polling sequence increases the capacity of the real-time service such as VoIP(Voice over Internet Protocol).
Keywords
wireless LAN; MAC; PCF; VoIP capacity;
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  • Reference
1 Nilsson, N.J. (1980), Artificial Intelligence, Springer-Verlag
2 Lewenstein, M. and Sviridenko, M. (2003), Approximating asymmetric maximum TSP, Proceedings of the Annual ACM-SIAM Symposium on Discrete Algorithms, 646-654
3 Wolsey, L.A. (1998), Integer programming, John Wiley & Sons
4 Zahedi, A. and Pahlavan, K. (2000), Capacity of a wireless LAN with voice and data services. IEEE Transactions on Communications, 48, 1160-1170   DOI   ScienceOn
5 Fischer, M. (2001), QoS baseline proposal for the IEEE 802.11e, IEEE Doc. IEEE 802.11-00/360
6 Comaniciu, C. and Mandayam, N. (2000), Delta modulation based prediction for access control in integrated voice/data CDMA systems, IEEE Journal on Selected Areas in Communications, 18, 112-122   DOI   ScienceOn
7 Zhao, L. and Fan, C. (2002), M-PCF: modified IEEE 802.11 PCF protocol implementing QoS, Electronics Letters, 38, 1611-1613   DOI   ScienceOn
8 IEEE Std 802.11 (1999), Wireless LAN medium access control (MAC) and physical layer specifications
9 Jeong, D.W. and Lee, C.Y. (2003), Downlink-first scheduling of real-time voice traffic in IEEE 802.11 wireless LANs, Journal of Korean Institute of Industrial Engineers, 29, 150-156
10 Lo, S.C., Lee, G. and Chen, W.T. (2003), An Efficient Multipolling Mechanism for IEEE 802.11 Wireless LANs, IEEE Transactions on Computers, 52, 764-778   DOI
11 Choi, W.-Y. (2004), A Centralized MAC-Level Admission Control Algorithm for Traffic Stream Services in IEEE 802.11e Wireless LAN, AEU-International Journal of Electronics and Communications, 58, 305-309   DOI
12 IEEE Std 802.11a (1999), Wireless LAN medium access control(MAC) and physical layer specifications: high speed physical layer in the 5 GHz band
13 Blaser, M. (2004), An 8/13 approximation algorithm for the asymmetric maximum TSP, Journal of Algorithm, 50, 23-48   DOI   ScienceOn