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- W2070963589 abstract "본 논문은 모든 노드가 다중 안테나를 갖는 다중 안테나 (MIMO, multiple-input and multiple-output) 공간 다중화 (SM, spatial multiplexing) 릴레이 시스템을 비트 오율 (BER, bit error rate) 관점에서 연구한다. 제한된 전력 자원을 효율적으로 이용하기 위해서는 각 노드와 안테나에서 최적화된 전력 할당 전략이 필요하다. 본 논문은 이런 관점에서 다중 안테나 공간 다중화 릴레이 시스템을 위한 비트 오율 최소화에 기반을 둔 전력 할당 알고리즘을 제안한다. 제안된 알고리즘은 평균 비트 오율을 직접 최소화하여 얻어지며, 노드 간 (inter-node) 전력 할당 알고리즘과 안테나 간 (inter-antenna) 전력 할당 알고리즘으로 구성된다. 비트 오율 성능에 있어서, 기존의 균등 전력 할당 (EPA, equal power allocation) 알고리즘보다 추가적인 전력 소비 없이도 월등한 성능을 보인다. In this paper, a multiple-input and multiple-output (MIMO) spatial multiplexing (SM) relay system is studied in a bit error rate (BER) sense, where every node is deployed with multiple antennas. In order to efficiently use the limited power resource, it is essential to optimally allocate the power to nodes and antennas. In this context, the power allocation (PA) algorithm based on minimum BER (MBER) for a MIMO SM relay system is proposed, which is derived by direct minimization of the average BER, and divided into inter-node and inter-antenna PA algorithm. The proposed scheme outperforms the conventional equal power allocation (EPA) algorithm without extra power consumption." @default.
- W2070963589 created "2016-06-24" @default.
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- W2070963589 date "2011-04-30" @default.
- W2070963589 modified "2023-09-26" @default.
- W2070963589 title "Approximate Minimum BER Power Allocation of MIMO Spatial Multiplexing Relay Systems" @default.
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- W2070963589 doi "https://doi.org/10.7840/kics.2011.36a.4.337" @default.
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