On the uplink capacity of cellular CDMA and TDMA over nondispersive channels

被引：0

作者：

Sari, H ^{[1
]}

Steendam, H ^{[1
]}

Moeneclaey, M ^{[1
]}

机构：

[1] Alcatel Access Syst Div, F-92734 Nanterre, France

来源：

1999 IEEE 49TH VEHICULAR TECHNOLOGY CONFERENCE, VOLS 1-3: MOVING INTO A NEW MILLENIUM | 1999年

关键词：

D O I：

暂无

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 investigate the interuser interference on the uplink channel (from users to base station) in cellular code-division multiple access (CDMA) and time-division multiple access (TDMA) systems. The results indicate that for the same total bandwidth occupancy and maximum number of users per cell, interuser interference is approximately 10 dB higher in CDMA in fully-loaded cells. The implication of these results is that for the same total bandwidth and number of users per cell, TDMA gives superior bit error rate (BER) performance, as confirmed by our numerical results on additive white Gaussian noise (AWGN) channels as well as on flat Rayleigh fading channels. Alternatively, CDMA needs approximately 10 times more bandwidth than TDMA to achieve the same signal-to-interference (S/I) ratio and bit error rate performance in fully loaded cells.

引用

页码：1638 / 1642

页数：5

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