Approximate minimum BER power allocation for MIMO-THP system

Yun, Xiang, Lv, Tiejun, Gong, Ping, Su, Xinghui and Yang, Shaoshi (2008) Approximate minimum BER power allocation for MIMO-THP system. At 4th IEEE/ACM International Wireless Communications and Mobile Computing Conference (IEEE/ACM IWCMC 2008), Crete, GR, 06 - 08 Aug 2008. IEEE, 888-892. (doi:10.1109/IWCMC.2008.153).


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This paper proposes a transmit power allocation (TPA) scheme based on multiple-input multiple-output (MIMO) Tomlinson-Harashima precoding (THP) structure, where a TPA matrix is introduced to the conventional MIMO-THP. We analyze the influence of the introduced TPA matrix on the performance of MIMO-THP. The proposed TPA scheme invokes the minimum average uncoded bit-error rate (BER) criterion subjected to a sum-power constraint. During the derivation, we consider the effects of precoding loss factor on the TPA scheme and obtain a closed-form expression of the TPA. Compared to existing TPA methods for MIMO-THP systems, the proposed scheme reduces processing complexity and improves the BER performance.

Item Type: Conference or Workshop Item (Speech)
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Keywords: multiple-input multiple-output, mimo, tomlinson-harashima precoding, thp, minimum bit-error rate, mber, transmit power allocation, tpa
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Divisions: Faculty of Physical Sciences and Engineering > Electronics and Computer Science > Comms, Signal Processing & Control
ePrint ID: 272121
Date Deposited: 26 Mar 2011 05:05
Last Modified: 27 Mar 2014 20:17
Publisher: IEEE
Further Information:Google Scholar

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