Scheduling for the downlink in a CDMA network with imperfect channel estimation

被引：0
|
作者：
Kwan, R [1 ]
Leung, C [1 ]
机构：
[1] Univ British Columbia, Dept Elect & Comp Engn, Vancouver, BC V6T 1Z4, Canada
来源：
GLOBECOM 2004: IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE WORKSHOPS | 2004年
关键词：
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
In this paper, the problem of scheduling for a single user on the downlink of a WCDMA network is addressed. Expressions are derived for the optimal effective bit rates when adaptive modulation and coding (AMC) and multicode transmission are employed. Traffic load aware scheduling is also studied. Since the selection of the modulation and coding scheme (MCS) and the number of multicodes requires an estimation of the downlink SIR, it is important to assess the performance degradation due to estimation errors. It is shown that the effective bit rate is quite sensitive to SIR estimation errors. The sensitivity can be reduced by using a conservative estimate of the SIR.
引用
收藏
页码：469 / 476
页数：8
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