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|Title:||Bit error performance of orthogonal space-time block codes over time-selective channel|
|Citation:||He, J., Kam, P.Y. (2007). Bit error performance of orthogonal space-time block codes over time-selective channel. IEEE International Conference on Communications : 4604-4609. ScholarBank@NUS Repository. https://doi.org/10.1109/ICC.2007.760|
|Abstract:||Most of the existing works on space-time block codes (STBC) assume the channels are quasi-static, i.e., they remain invariant within one block. This assumption is not always true. In a more general case of time-selective channel, the channel matrix is no longer orthogonal. If conventional linear decoder is applied as it is in the quasi-static channel, it will introduce an irreducible error floor. In order to improve the performance, we can use zero-forcing decoder, which completely removes the interference. In this paper, we analyze the average bit error performance for BOTH conventional linear and zeroforcing decoders in the time-selective channels. The closed-form average bit error probabilities are obtained for both decoders, together with the irreducible error floor for the conventional linear decoder. Asymptotic analysis and numerical examples are also provided. © 2007 IEEE.|
|Source Title:||IEEE International Conference on Communications|
|Appears in Collections:||Staff Publications|
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