Elements of information theory
Elements of information theory
Wireless Communications: Principles and Practice
Wireless Communications: Principles and Practice
Multi-Antenna Transceiver Techniques for 3g and Beyond
Multi-Antenna Transceiver Techniques for 3g and Beyond
Beamforming algorithms for information relaying in dense wireless networks
Beamforming algorithms for information relaying in dense wireless networks
Cooperative multibeamforming in ad hoc networks
EURASIP Journal on Advances in Signal Processing
Single and multiple relay selection schemes and their achievable diversity orders
IEEE Transactions on Wireless Communications
Design and Analysis of MIMO Spatial Multiplexing Systems With Quantized Feedback
IEEE Transactions on Signal Processing
Application of quasi-orthogonal space-time block codes in beamforming
IEEE Transactions on Signal Processing
Limited feedback unitary precoding for orthogonal space-time block codes
IEEE Transactions on Signal Processing
Optimal transmitter eigen-beamforming and space-time block coding based on channel mean feedback
IEEE Transactions on Signal Processing
Coded cooperation in wireless communications: space-time transmission and iterative decoding
IEEE Transactions on Signal Processing
Multiple antenna channels with partial channel state information at the transmitter
IEEE Transactions on Wireless Communications
Transmitter optimization and optimality of beamforming for multiple antenna systems
IEEE Transactions on Wireless Communications
On the performance of distributed space-time coding systems with one and two non-regenerative relays
IEEE Transactions on Wireless Communications
Capacity scaling laws in MIMO relay networks
IEEE Transactions on Wireless Communications
Distributed Space-Time Coding in Wireless Relay Networks
IEEE Transactions on Wireless Communications
Optimal Design of Non-Regenerative MIMO Wireless Relays
IEEE Transactions on Wireless Communications
Power-Bandwidth Tradeoff in Dense Multi-Antenna Relay Networks
IEEE Transactions on Wireless Communications
Improving amplify-and-forward relay networks: optimal power allocation versus selection
IEEE Transactions on Wireless Communications
Combining Beamforming and Space-Time Coding Using Quantized Feedback
IEEE Transactions on Wireless Communications
Combining beamforming and orthogonal space-time block coding
IEEE Transactions on Information Theory
Optimal transmitter eigen-beamforming and space-time block coding based on channel correlations
IEEE Transactions on Information Theory
Distributed space-time-coded protocols for exploiting cooperative diversity in wireless networks
IEEE Transactions on Information Theory
On beamforming with finite rate feedback in multiple-antenna systems
IEEE Transactions on Information Theory
Cooperative diversity in wireless networks: Efficient protocols and outage behavior
IEEE Transactions on Information Theory
On the capacity of MIMO relay channels
IEEE Transactions on Information Theory
Capacity bounds and power allocation for wireless relay channels
IEEE Transactions on Information Theory
Transmitting to colocated users in wireless ad hoc and sensor networks
IEEE Transactions on Information Theory
On the achievable diversity-multiplexing tradeoff in half-duplex cooperative channels
IEEE Transactions on Information Theory
Outage analysis of coded cooperation
IEEE Transactions on Information Theory
Achievable rates in cognitive radio channels
IEEE Transactions on Information Theory
On the power efficiency of sensory and ad hoc wireless networks
IEEE Transactions on Information Theory
Efficient use of side information in multiple-antenna data transmission over fading channels
IEEE Journal on Selected Areas in Communications
Fading relay channels: performance limits and space-time signal design
IEEE Journal on Selected Areas in Communications
IEEE Journal on Selected Areas in Communications
Distributed beamforming in wireless relay networks with quantized feedback
IEEE Journal on Selected Areas in Communications
Distributed beamforming with limited feedback in regenerative cooperative networks
WiCOM'09 Proceedings of the 5th International Conference on Wireless communications, networking and mobile computing
IEEE Transactions on Signal Processing
Beamforming in wireless relay-interference networks with quantized feedback
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Cooperative amplify-and-forward beamforming for OFDM systems with multiple relays
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Combination of MRC and distributed space-time coding in networks with multiple-antenna relays
IEEE Transactions on Wireless Communications
Cooperative transmission for wireless relay networks using limited feedback
IEEE Transactions on Signal Processing
Timing estimation and resynchronization for amplify-and- forward communication systems
IEEE Transactions on Signal Processing
Two-way MIMO relay precoder design with channel state information
IEEE Transactions on Communications
Transmitter-receiver collaborative-relay beamforming by simulated annealing
ICSI'11 Proceedings of the Second international conference on Advances in swarm intelligence - Volume Part II
Wireless Communications & Mobile Computing
A Cooperative Relay Selection for Two-Way Cooperative Relay Networks in Nakagami Channels
Wireless Personal Communications: An International Journal
Robust Filter-and-forward Beamforming Design for Two-way Multi-antenna Relaying Networks
Mobile Networks and Applications
Computer Networks: The International Journal of Computer and Telecommunications Networking
Wireless Personal Communications: An International Journal
Joint Source and Relay Precoder Design in Amplify-and-Forward MIMO Relay Systems with Direct Link
Wireless Personal Communications: An International Journal
Hi-index | 754.85 |
This paper deals with beamforming in wireless relay networks with perfect channel information at the relays, receiver, and transmitter if there is a direct link between the transmitter and receiver. It is assumed that every node in the network has its own power constraint. A two-step amplify-and-forward protocol is used, in which the transmitter and relays not only use match filters to form a beam at the receiver but also adaptively adjust their transmit powers according to the channel strength information. For networks with no direct link, an algorithm is proposed to analytically find the exact solution with linear (in network size) complexity. It is shown that the transmitter should always use its maximal power while the optimal power of a relay can take any value between zero and its maxima. Also, this value depends on the quality of all other channels in addition to the relay's own. Despite this coupling fact, distributive strategies are proposed in which, with the aid of a low-rate receiver broadcast, a relay needs only its own channel information to implement the optimal power control. Then, beamforming in networks with a direct link is considered. When the direct link exists during the first step only, the optimal power control is the same as that of networks with no direct link. For networks with a direct link during the second step only and both steps, recursive numerical algorithms are proposed. Simulation shows that network beamforming achieves the maximal diversity order and outperforms other existing schemes.