Abstract
This paper describes the performance analysis of a distributed antenna system which includes space and path diversity with radio channel estimation. This system is used for CDMA personal communication systems. In this paper, the performance of a diversity system is analyzed precisely considering multipath and inter-antenna interference. In a diversity system, the adaptive RAKE receiver which estimates the characteristics of a radio channel adaptively has been used for diversity combining. In the adaptive RAKE, the time-variant characteristic has been approximated by a time function. In this paper, the estimation performance of the adaptive RAKE is analyzed in cases of time functions of O-th, first and second degrees. The performances are evaluated and compared with the differential RAKE. The adaptive RAKE is found to improve the signal quality of more than 2 dB in comparison with the differential RAKE. It is also found that the optimum parameter design can be achieved flexibly for radio channel estimation by using higher degree time functions.
| Original language | English |
|---|---|
| Pages (from-to) | 606-617 |
| Number of pages | 12 |
| Journal | IEICE Transactions on Communications |
| Volume | E77-B |
| Issue number | 5 |
| Publication status | Published - 1994 May |
| Externally published | Yes |
ASJC Scopus subject areas
- Software
- Computer Networks and Communications
- Electrical and Electronic Engineering