標題: | A joint power and rate assignment algorithm for multirate soft handoffs in mixed-size WCDMA cellular systems |
作者: | Liao, Ching-Yu Chang, Chung-Ju Wang, Li-Chun Chen, Yih-Shen 交大名義發表 National Chiao Tung University |
關鍵字: | CDMA;optimization methods;resource management;soft handoff |
公開日期: | 1-五月-2007 |
摘要: | This paper proposes a joint power and rate assignment (JPRA) algorithm to deal with multirate soft handoffs (SHOs) in mixed-size wideband code division multiple access cellular systems. This JPRA algorithm contains a link proportional power allocation scheme and an evolutionary computing rate assignment method to determine an appropriate allocation of transmission power and service rate for multirate SHOs. It can achieve power balancing among cells better than the conventional site-selection diversity transmission scheme with best effort rate allocation. Simulation results show that the JPRA algorithm can achieve better cell's service coverage! and higher system capacity with and without the measurement errors during the active set selection. |
URI: | http://dx.doi.org/10.1109/TVT.2007.895553 http://hdl.handle.net/11536/4708 |
ISSN: | 0018-9545 |
DOI: | 10.1109/TVT.2007.895553 |
期刊: | IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY |
Volume: | 56 |
Issue: | 3 |
起始頁: | 1388 |
結束頁: | 1398 |
顯示於類別: | 會議論文 |