论文信息 - On capacity of OFDMA-based IEEE802.16 WiMAX including Adaptive Modulation and Coding (AMC) and inter-cell interference

On capacity of OFDMA-based IEEE802.16 WiMAX including Adaptive Modulation and Coding (AMC) and inter-cell interference

We study in this paper the capacity of the downlink of OFDMA-based IEEE802.16 WiMAX system in the presence of two types of traffic, streaming and elastic. We focus in particular on the impact of Adaptive Modulation and Coding (AMC) as well as inter-cell interference resulting from different frequency reuse schemes. Several performance measures, namely blocking rates, mean transfer time and the mean number of collisions between two OFDMA WiMAX cells, are then derived and quantified. We show that reuse partitioning results in a lower blocking probability for streaming flows in the inner region but a much higher one for elastic flows in the outer region; the overall cell throughput increases meaning that the decrease in the number of collisions improves the overall throughput.

Tijani Chahed | Chadi Tarhini

[1] Tijani Chahed,et al. System capacity in OFDMA-based WiMAX , 2006, 2006 International Conference on Systems and Networks Communications (ICSNC'06).

[2] Gordon L. Stuber,et al. Principles of mobile communication (2nd ed.) , 2001 .

[3] Hassan Yaghoobi,et al. Scalable OFDMA Physical Layer in IEEE 802.16 WirelessMAN , 2004 .

[4] Sara Oueslati,et al. Integrated Admission Control for Streaming and Elastic Traffic , 2001, QofIS.

[5] Mathias Johansson,et al. Dynamic Reuse Partitioning Within Cells Based on Local Channel and Arrival Rate Fluctuations , 2008, IEEE Transactions on Vehicular Technology.

[6] Abbas Jamalipour,et al. Wireless communications , 2005, GLOBECOM '05. IEEE Global Telecommunications Conference, 2005..

[7] Ieee Microwave Theory,et al. Part 16: Air Interface for Fixed and Mobile Broadband Wireless Access Systems — Amendment for Physical and Medium Access Control Layers for Combined Fixed and Mobile Operation in Licensed Bands , 2003 .

[8] Salah-Eddine Elayoubi,et al. On the capacity of OFDMA 802.16 systems , 2006, 2006 IEEE International Conference on Communications.

[9] Gordon L. Stüber. Principles of mobile communication , 1996 .

[10] Allen B. Downey. The structural cause of file size distributions , 2001, SIGMETRICS '01.

[11] Georgios B. Giannakis,et al. Queuing with adaptive modulation and coding over wireless links: cross-Layer analysis and design , 2005, IEEE Transactions on Wireless Communications.