| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 725179 | The Journal of China Universities of Posts and Telecommunications | 2008 | 6 Pages |
Abstract
Non-orthogonal time-frequency division multiplexing (NTFDM) transmission scheme has been proposed to further improve the bandwidth efficiency and overcome the drawbacks of the conventional orthogonal frequency division multiplexing (OFDM) method. Based on such approach, the fast signal detection algorithm, semidefinite programming (SDP) detection, has been studied. As the coefficient matrix tends to be ill conditioned, the modified SDP algorithm combined with successive interference cancellation (SIC) has been developed. The improved algorithm is a good tradeoff between performance and detection complexity. Simulation results show that the proposed algorithm can achieve better performance than cutting plane aided SDP method.
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Authors
Yong MO, Xing YANG, Dao-ben LI,