Effects of spreading and training on capacity in overloaded CDMA

被引：2
|
作者：
Ponnaluri, Satya Prakash [1 ]
Guess, Tommy [2 ]
机构：
[1] Univ Virginia, Dept Elect & Comp Engn, Charlottesville, VA 22904 USA
[2] Qualcomm Inc, Boulder, CO 80301 USA
来源：
IEEE TRANSACTIONS ON COMMUNICATIONS | 2008年 / 56卷 / 04期
基金：
美国国家科学基金会;
关键词：
CDMA; WBE sequences; channel estimation; training sequences; quasi-static; sum-capacity;
D O I：
10.1109/TCOMM.2008.050243
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We address the issue of sum-capacity in an overloaded, uplink, synchronous CDMA system in a quasi-static fading environment. Part of each fading block is reserved for channel training and the remainder of the block is used for data transmission. We evaluate bounds on sum-capacity using the estimates from channel estimation, and consider the effects on the lower bound caused by the spreading-coding-training tradeoff.
引用
收藏
页码：523 / 526
页数：4
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