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A Joint Channel Estimation and Data Detection for a MIMO Wireless Communication System via Sphere Decoding

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초록

A joint channel estimation and data detection technique for a multiple input multiple output (MIMO)wireless communication system is proposed. It combines the least square (LS) training based channelestimation (TBCE) scheme with sphere decoding. In this new approach, channel estimation is enhanced withthe help of blind symbols, which are selected based on their correctness. The correctness is determined viasphere decoding. The performance of the new scheme is studied through simulation in terms of the bit errorrate (BER). The results show that the proposed channel estimation has comparable performance and bettercomputational complexity over the existing semi-blind channel estimation (SBCE) method.

Abstract

A joint channel estimation and data detection technique for a multiple input multiple output (MIMO)wireless communication system is proposed. It combines the least square (LS) training based channelestimation (TBCE) scheme with sphere decoding. In this new approach, channel estimation is enhanced withthe help of blind symbols, which are selected based on their correctness. The correctness is determined viasphere decoding. The performance of the new scheme is studied through simulation in terms of the bit errorrate (BER). The results show that the proposed channel estimation has comparable performance and bettercomputational complexity over the existing semi-blind channel estimation (SBCE) method.

참고문헌 (35)

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