Title | ||
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Error rate performance improvement for a decorrelating CDMA receiver by introducing additional dummy pilot response. |
Abstract | ||
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A pilot assisted CDMA system which uses extended spreading sequences with guard sequences under a quasi-synchronous condition is capable of separating the interference components included in the input of a de-correlating receiver by solving a system of linear equations. The performance of such a system, however, depends on the property of the de-correlating matrix made of the pilots responses. The regularity of the matrix often tends to degrade due to primarily the multi-paths, resulting in the solutions vulnerable to AWGN. This paper proposes an effective technique to solve this problem by introducing a dummy pilot associated with a virtual user into a group of the real users to be served. The simulation indicates a remarkable improvement in the bit-error-rate performance. In addition, it proves a RAKE like function with power-sum-characteristics. |
Year | DOI | Venue |
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2002 | 10.1109/PIMRC.2002.1047348 | PIMRC |
Keywords | Field | DocType |
AWGN channels,code division multiple access,decorrelation,error statistics,land mobile radio,matrix algebra,multipath channels,multiuser channels,radio links,radio receivers,radiofrequency interference,spread spectrum communication,AWGN,BER performance,RAKE like function,bit error rate performance,de-correlating matrix,decorrelating CDMA receiver,decorrelating receiver,dummy pilot response,extended spreading sequences,guard sequences,interference components,linear equations,mobile communication systems,multipaths,pilot assisted CDMA system,pilots response,power-sum characteristics,quasi-synchronous condition,simulation,system performance,up-link transmission,virtual user | Rake,Decorrelation,Telecommunications,Computer science,Control theory,Word error rate,Real-time computing,Interference (wave propagation),Code division multiple access,Additive white Gaussian noise,Performance improvement,Spread spectrum | Conference |
Volume | Citations | PageRank |
2 | 0 | 0.34 |
References | Authors | |
0 | 4 |
Name | Order | Citations | PageRank |
---|---|---|---|
Mitsuhiro Tomita | 1 | 1 | 1.71 |
Noriyoshi Kuroyanagi | 2 | 57 | 9.66 |
Satoru Ozawa | 3 | 1 | 3.40 |
Naoki Suehiro | 4 | 120 | 15.63 |