MULTIPLE-TRAINING BI-DIRECTIONAL ADAPTIVE EQUALIZERS FOR TDMA DIGITAL CELLULAR SYSTEMS
✍ Scribed by MIN-JET CHEN; C. BERNARD SHUNG
- Publisher
- John Wiley and Sons
- Year
- 1996
- Tongue
- English
- Weight
- 719 KB
- Volume
- 9
- Category
- Article
- ISSN
- 1074-5351
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✦ Synopsis
In this paper, two popular adaptive equalization methods, fractionally spaced decision feedback equalization (FSDFE) and maximum-likelihood sequence estimation (MLSE), are investigated for the design of digital mobile receivers for the IS-54 specifications of the NADC* system. A bi-directional equalization technique is incorporated and a multiple training LMS (MT-LMS) algorithm is used as the adaptive algorithm for both equalization methods. The results show that both MT-MLS and bidirectional techniques are effective in improving the receiver performance. However, the MT-LMS algorithm is more useful for MLSE than FSDFE whereas the bi-directional equalization technique improves FSDFE much more than MLSE.