An all digital multiuser CDMA receiver and its ASIC design
碩士 === 國立交通大學 === 電信工程系 === 89 === In recent years, a class of DS-CDMA schemes has been proposed as a major candidate for the next generation digital cellular system. It is known that the capacity of a CDMA system is interference limited. This problem can be alleviat...
| Main Authors: | , |
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| Other Authors: | |
| Format: | Others |
| Language: | zh-TW |
| Published: |
2001
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| Online Access: | http://ndltd.ncl.edu.tw/handle/77055168245913359247 |
| Summary: | 碩士 === 國立交通大學 === 電信工程系 === 89 === In recent years, a class of DS-CDMA schemes has been proposed as a major candidate
for the next generation digital cellular system. It is known that the capacity of a CDMA
system is interference limited. This problem can be alleviated by the so called multiuser
detection (MUD). In this thesis, we propose an all digital CDMA receiver for MUD. We
use a two-stage partial parallel interference cancellation (PIC) algorithm for MUD as well
as for code tracking. It is shown that the detection and code tracking performance can
be greatly enhanced using the proposed structure. Finally, the receiver is implemented
using the VHDL with a fixed-point architecture.
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