Edward W. Jang

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Recently, multihop or relay networks have been widely considered as supplementary technology in next-generation wireless systems such as fourth generation (4G), Third Generation Partnership Project Long-Term Evolution (3GPP LTE), and IEEE 802.16m to increase the cell radius or combat the shadowing effect, which is mainly caused by large obstacles between(More)
The implementation of Decision Feedback Equalization-based receivers for MIMO systems that employ Hybrid ARQ (HARQ) is considered. It is shown how the theory of MIMO Decision Feedback Equalization can be applied to derive optimal DFE architectures for the case of MIMO HARQ. Incremental structures are proposed that reduce the implementation complexity of the(More)
This paper proposes a new combining scheme for multiple-input multiple-output (MIMO) systems with hybrid automatic-repeat-request (HARQ). The proposed combining scheme is proved to have the optimal decoding performance. Furthermore, the proposed combining scheme is shown to have low memory requirement and reduced complexity compared to other optimal(More)
In this paper, we consider single user throughput optimization problem for continuous flat fading channels of multiple-input multiple-output (MIMO) system. It is known that channel state information (CSI) at the transmitter enables significantly higher data rate for MIMO system compared to single-input single-output (SISO) system case. One of the widely(More)