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Asymmetric power allocation to improve convergence rate of iterative receivers with soft cancellation

journal contribution
posted on 2009-08-18, 00:00 authored by C Jung, Jinho ChoiJinho Choi, J Ha
The major drawback of iterative receivers is more power consumption and longer latency due to iterations even though iterative receivers can enjoy a good compromise between complexity and performance. Motivated by these issues, we study a simple power allocation strategy in the transmitter side to alleviate the burden in an iterative receiver with interference cancellation by improving convergence rate. We analyze asymmetric power allocation with the extrinsic information transfer (EXIT) chart technique and show that the convergence rate (as well as performance) can be improved.

History

Journal

IEEE Communications Letters

Volume

13

Issue

8

Pagination

579 - 581

Publisher

IEEE

Location

Piscataway, N.J.

ISSN

1089-7798

eISSN

1558-2558

Language

eng

Publication classification

CN.1 Other journal article

Copyright notice

2009, IEEE