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Collocated and Distributed STBCs with Partial Interference Cancellation Decoding, Part II: Code Construction

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2 Author(s)
Natarajan, L.P. ; Dept. of Electr. Commun. Eng., Indian Inst. of Sci., Bangalore, India ; Rajan, B.S.

In this second part of a two part series of papers, we construct a new class of Space-Time Block Codes (STBCs) for point-to-point MIMO channel and Distributed STBCs (DSTBCs) for the amplify-and-forward relay channel that give full-diversity with Partial Interference Cancellation (PIC) and PIC with Successive Interference Cancellation (PIC-SIC) decoders. The proposed class of STBCs include most of the known full-diversity low complexity PIC/PIC-SIC decodable STBCs as special cases. We also show that a number of known full-diversity PIC/PIC-SIC decodable STBCs that were constructed for the point-to-point MIMO channel can be used as full-diversity PIC/PIC-SIC decodable DSTBCs in relay networks. For the same decoding complexity, the proposed STBCs and DSTBCs achieve higher rates than the known low decoding complexity codes. Simulation results show that the new codes have a better bit error rate performance than the low ML decoding complexity codes available in the literature.

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Wireless Communications, IEEE Transactions on  (Volume:10 ,  Issue: 9 )