Analytical Modeling of Contention-Based Bandwidth Request Mechanism in IEEE 802.16 Wireless Networks

The IEEE 802.16 wireless metropolitan area network (WMAN) standard is a promising and cost-effective, last-mile wireless technology for the provision of broadband Internet access to end users. In this paper, we present an accurate analytical model that describes the contention-based bandwidth (BW) request scheme of the 802.16 standard, which is also known as WiMAX, for the persistent and nonpersistent request generation cases. We first model the contention procedure with a Markov chain, taking into account the exponential back-off procedure as well as the waiting time for a BW assignment and the possible timeout for lost messages. The accuracy of the model is then evaluated by comparing it with simulation results for a wide range of values of the parameters involved. We use this model to accurately calculate the capacity of the contention slots in delivering BW requests, from which the average access delay is also found. These measures are used to determine a proper configuration for the efficient operation of the contention-based BW request scheme. The proposed model provides a useful analytical tool for devising adaptive configuration mechanisms for the contention access mode of the 802.16 medium access control (MAC) layer.

[1]  Sunghyun Choi,et al.  IEEE 802.11e Wireless LAN for Quality of Service , 2001 .

[2]  Jeffrey G. Andrews,et al.  Broadband wireless access with WiMax/802.16: current performance benchmarks and future potential , 2005, IEEE Communications Magazine.

[3]  Sylvie Perreau,et al.  Performance analysis of 802.11 CSMA/CA for infrastructure networks under finite load conditions , 2005, 2005 14th IEEE Workshop on Local & Metropolitan Area Networks.

[4]  Luciano Lenzini,et al.  Performance Evaluation of the IEEE 802.16 MAC for QoS Support , 2007, IEEE Transactions on Mobile Computing.

[5]  David W. Petr,et al.  Quality of service scheduling in cable and broadband wireless access systems , 2002, IEEE 2002 Tenth IEEE International Workshop on Quality of Service (Cat. No.02EX564).

[6]  Voon Chin Phua,et al.  Wireless lan medium access control (mac) and physical layer (phy) specifications , 1999 .

[7]  Oleg Gusak,et al.  Performance Evaluation of the 802.16 Medium Access Control Layer , 2004, ISCIS.

[8]  Min-Su Kim,et al.  Performance analysis of the IEEE 802.16 wireless metropolitan area network , 2005, First International Conference on Distributed Frameworks for Multimedia Applications.

[9]  Hussein M. Alnuweiri,et al.  Modeling and performance evaluation of frame bursting in wireless LANs , 2006, IWCMC '06.

[10]  Carl Eklund,et al.  Quality of service support in IEEE 802.16 networks , 2006, IEEE Network.

[11]  Ieee Microwave Theory,et al.  IEEE Standard for Local and Metropolitan Area Networks Part 16: Air Interface for Fixed Broadband Wireless Access Systems Draft Amendment: Management Information Base Extensions , 2007 .

[12]  CantieniGion Reto,et al.  Performance analysis under finite load and improvements for multirate 802.11 , 2005 .

[13]  Dimitri P. Bertsekas,et al.  Data Networks , 1986 .

[14]  A.H. Tewfik,et al.  Performance analysis of multi-rate 802.11 WLANs under finite load and saturation conditions , 2005, VTC-2005-Fall. 2005 IEEE 62nd Vehicular Technology Conference, 2005..

[15]  Christian Hoymann,et al.  Analysis and performance evaluation of the OFDM-based metropolitan area network IEEE 802.16 , 2005, Comput. Networks.

[16]  Yaser Pourmohammadi Fallah.  Per-session weighted fair scheduling for real time multimedia in multi-rate wireless local area networks , 2007 .

[17]  Thierry Turletti,et al.  Performance analysis under finite load and improvements for multirate 802.11 , 2005, Comput. Commun..

[18]  Robert A. Scholtz,et al.  Performance Analysis of , 1998 .

[19]  Theodore Antonakopoulos,et al.  CSMA/CA performance under high traffic conditions: throughput and delay analysis , 2002, Comput. Commun..

[20]  Sujata Banerjee,et al.  Quality of service support in ieee 802.11 wireless lan , 2005 .

[21]  A. Girotra,et al.  Performance Analysis of the IEEE 802 . 11 Distributed Coordination Function , 2005 .