Paper Info
Title
Traffic Channel Amplitude Estimation With Rate Determination For The Is-95 Downlink
Abstract
In this paper, we describe amplitude estimation algorithms for the Walsh traffic channels in the downlink of Interim Standard 95 (IS-95). The parameter estimate is designed to improve the performance of a successive interference canceler (SIC) by providing greater reconstruction accuracy. A feature of the IS-95 downlink that makes amplitude estimation difficult is that during lowered voice activity levels, bit repetition occurs with a corresponding drop in the symbol energy for a frame of data. As a result, the amplitude level cannot be assumed to remain constant and should be taken into account during signa reconstruction in the SIC. We explore various algorithms for estimating the nominal Walsh traffic channel amplitude level. The distinguishing characteristic of the different techniques is the type of a priori knowledge employed in the estimation. For example, one parameter that may need to be estimated is the bit repetition multiple using a rate determination algorithm.
Year
DOI
Venue
2003
10.1109/ICC.2003.1204069
2003 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, VOLS 1-5: NEW FRONTIERS IN TELECOMMUNICATIONS
Keywords
Field
DocType
downlink,signal reconstruction,awgn
Traffic channel,Computer science,A priori and a posteriori,Algorithm,Communication channel,Real-time computing,Speech recognition,Amplitude,Interference canceller,Signal reconstruction,Telecommunications link
Conference
Citations 
PageRank 
References 
0
0.34
4
Authors
3
Name
Order
Citations
PageRank
Richard E. Cagley11196.77
John J. Shynk21410.72
Richard P. Gooch321.78