Results 11 to 20 of about 668,337 (217)
Transmit and Cooperative Beamforming in Multi-Relay Systems
2010 IEEE International Conference on Communications, 2010 Cooperative communication has been receiving significant attention in recent years because of the great potential for performance improvement. In this paper, we will consider the joint design of transmit and cooperative beamforming vectors in cooperative systems with a multi-antenna source and multiple single-antenna relays. The cooperative beamforming,
Xiang Chen +2 more
openaire +2 more sources
Analysis of energy efficiency for cooperative beamforming in wireless sensor networks
Tongxin xuebao, 2008 The energy consumption of cooperative beamforming was studied under given requirements on the end-to-end bit error rate （BER）,and the optimal numbers of cooperative node were obtained for different propagation environments and transmission distances ...
FAN Jian-cun +3 more
doaj +3 more sources
Robust Cooperative Relay Beamforming [PDF]
IEEE Wireless Communications Letters, 2013 In this paper, the robust distributed relay beamforming problem is solved using the worst case approach, where the problem solution has been involved because of the effect of uncertainty of channel knowledge on the quality of service (QoS) constraints.
Behrad Mahboobi +3 more
openaire +2 more sources
Cooperative Interference Management With MISO Beamforming [PDF]
IEEE Transactions on Signal Processing, 2010 This correspondence studies the downlink transmission in a multi-cell system, where multiple base stations (BSs) each with multiple antennas cooperatively design their respective transmit beamforming vectors to optimize the overall system performance. For simplicity, it is assumed that all mobile stations (MSs) are equipped with a single antenna each ...
Rui Zhang 0006, Shuguang Cui
openaire +2 more sources
Transmit beamforming with cooperative base stations [PDF]
Proceedings. International Symposium on Information Theory, 2005. ISIT 2005., 2005 We consider a cellular network where base stations can cooperate to determine the signals to be transmitted on the downlink. In such a scenario, it would be possible to use "macroscopic" transmit beamforming to improve system performance. The downlink beamformer of interest is generalised from some transmit beamformers that have been shown to meet ...
Boon Loong Ng +3 more
openaire +3 more sources
Distributed Downlink Beamforming With Cooperative Base Stations [PDF]
IEEE Transactions on Information Theory, 2008 In this paper, we consider multicell processing on the downlink of a cellular network to accomplish ldquomacrodiversityrdquo transmit beamforming. The particular downlink beamformer structure we consider allows a recasting of the downlink beamforming problem as a virtual linear mean square error (LMMSE) estimation problem.
Boon Loong Ng +3 more
openaire +4 more sources
Reducing feedback requirements of the multiple weight opportunistic beamforming scheme via selective multiuser diversity [PDF]
, 2008 Opportunistic beamforming (OB) relies on the transmission of Channel State Information (CSI) in the form of instantaneous Signal to Noise Ratio (SNR) from Mobile Stations (MSs) back to the Base Station (BS) for scheduling purposes that increase ...
Nicolaou, M +5 more
core +1 more source
, 2023 <p><strong>Full Changelog</strong>: https://github.com/jdassink/beamforming/commits/beamforming</p ...
Jelle Assink
core +1 more source
Secrecy Performance of Buffer-Aided Hybrid Virtual Full-Duplex and Half-Duplex Relay Activation
IEEE Open Journal of Vehicular Technology, 2022 This paper proposes a novel secure buffer-aided relay selection capable of amalgamating virtual full-duplex (VFD) and half-duplex (HD) modes. Our scheme is designed to allow multiple relays to share a common packet seamlessly and to eliminate the effects
Gan Srirutchataboon, Shinya Sugiura
doaj +1 more source
An Opportunistic Cooperative Packet Transmission Scheme in Wireless Multi-Hop Networks
Sensors, 2019 Cooperative routing, combining cooperative communication in the physical layer and routing technology in the network layer, is one of the most widely used technologies for improving end-to-end transmission reliability and delay in the wireless multi-hop ...
Yating Gao, Guixia Kang, Jianming Cheng
doaj +1 more source