Low complexity MIMO detection algorithm
نویسندگان
چکیده
The multi antenna systems offer a much larger channel capacity than the traditional single antenna systems. The price which has to be extra paid is detection complexity. In this paper we examine performance of the low complexity algorithm called zero forcing–maximum likelihood (ZFML) [5]. We find this algorithm appropriate for MIMO (Multiple Input Multiple Output) systems using more receive than transmit antennas. For the 2x4 VBLAST (Vertical Bell-Labs Layered Space-Time) MIMO system almost maximum likelihood (ML) performance is achieved. To overcome large performance gaps in NxN MIMO systems, some modifications of the algorithm are needed. In future, we intend to upgrade this algorithm to allow for iterative decoding in turbo MIMO systems.
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