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Abstract-Due to the huge unlicensed spectrum, millimeter wave (MMW) communication are gaining much attention for 5G cellular systems. To combat the severe path loss encountered, MMW communication often resorts to multiple-input multipleoutput (MIMO) beamforming. The capacity-optimal transmit and receive beamforming vectors are determined by the singular value decomposition (SVD) of channel matrix...
In the field of indoor wireless networks, visible light communication (VLC), which can synergistically provide both illumination and data transmission, is garnering increasing attention. Realizing dimming function without corrupting the communication performance is one of the main challenges for VLC systems. By fully taking advantage of the available channel state information (CSI) at both the transmitters...
Multiple-input multiple-output (MIMO) amplify-and- forward (AF) relaying is designed for secure communication between a source-destination pair in the presence of multiple eavesdroppers. Assuming statistical knowledge of the eavesdroppers' channel state information (ECSI) errors, we introduce a probabilistically robust design method, which aims to optimize the source transmission power and AF relaying...
OFDMA has emerged as a promising physical layer technology for LTE wireless networks. OFDM solves the problem of co-channel interference in intra-cell to some extent because of the orthogonality of subcarriers, along with the character of guard interval and cyclic prefix. However, inter-cell interference still exists, especially the cell edge users suffer from interferences seriously, which leads...
Recently, there has been growing interest in secure communication via multi-antenna physical-layer designs. In this paper, we consider a transmit covariance design for a secrecy rate maximization problem under a multicast scenario, where a multi-antenna transmitter delivers a common confidential message to multiple single-antenna receivers in the presence of multiple multi-antenna eavesdroppers. This...
Consider a robust downlink beamforming optimization problem for secondary multicast transmission in a multiple-input multiple-output (MIMO) spectrum sharing cognitive radio (CR) network. The minimization problem of transmit power is formulated subject to both the quality-of-service (QoS) constraints on the secondary receivers and the interference temperature constraints on the primary users, under...
Coordinated Multi-Point transmission and reception (CoMP) technique has been adopted in LTE-Advanced as one of the promising techniques because it can significantly increase the throughput of the cell edge user and the total sector throughput for both downlink and uplink transmission. Compared with conventional cellular system, CoMP can reduce inter-cell interference (ICI) significantly. On the other...
The advances of multi-antenna techniques has recently led to renewed interest in physical-layer secrecy, a meaningful topic that enables us to prevent eavesdroppers from retrieving information intended for a legitimate user through physical layer designs. This paper address a secrecy-rate maximization problem for the scenario of a multi-input single-output channel listened by multiple multi-antenna...
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