Adaptive downlink resource allocation strategies for real-time data services in OFDM cellular systems

作者：Damji Navid^*; Le Ngoc Tho

来源：EURASIP Journal on Wireless Communications and Networking, 2006, 17526.

DOI：10.1155/WCN/2006/17526

This paper presents a detailed performance analysis of adaptive downlink resource allocation based on users' instantaneous channel responses using power minimization ( PM) and bandwidth constrained power minimization (BCPM) strategies. This study shows that, in cellular systems, where interference is a dominant factor, the link outage performance of a resource allocation strategy varies significantly depending on the user channel parameters. In particular, both analytical and simulation results indicate that the PM strategy outperforms BCPM in a mild shadowing environment. However, in severe shadowing conditions, this trend is reversed. This assessment holds true for both flat and frequency-selective fading.

• 出版日期2006