Link-adaptive distributed coding for multisource cooperation
EURASIP Journal on Advances in Signal Processing
NAF, OAF, or noncooperation: which protocol to choose?
EURASIP Journal on Advances in Signal Processing
Subcarrier pairing for amplify-and-forward and decode-and-forward OFDM relay links
IEEE Communications Letters
A distributed on-off amplify-and-forward protocol for the fading parallel relay channel
IEEE Communications Letters
Outage probability-based power and time optimization for relay networks
IEEE Transactions on Signal Processing
Cooperative transmission based on decode-and-forward relaying with partial repetition coding
IEEE Transactions on Wireless Communications
Adaptive power allocation for regenerative relaying with multiple antennas at the destination
IEEE Transactions on Wireless Communications
A game-theoretic approach for distributed power control in interference relay channels
IEEE Transactions on Wireless Communications
Single and multiple relay selection schemes and their achievable diversity orders
IEEE Transactions on Wireless Communications
Power allocation strategies for distributed space-time codes in amplify-and-forward mode
EURASIP Journal on Advances in Signal Processing
Resource allocation algorithms with reduced complexity in MIMO multi-hop fading channels
WCNC'09 Proceedings of the 2009 IEEE conference on Wireless Communications & Networking Conference
What determines resource optimization in cooperative communications
WCNC'09 Proceedings of the 2009 IEEE conference on Wireless Communications & Networking Conference
Sub-optimum distributed power allocation for parallel relay networks
WCNC'09 Proceedings of the 2009 IEEE conference on Wireless Communications & Networking Conference
ICACT'09 Proceedings of the 11th international conference on Advanced Communication Technology - Volume 3
The impact of antenna array on outage performance of cooperative dual hop relay network
ICACT'09 Proceedings of the 11th international conference on Advanced Communication Technology - Volume 3
Achievable rate of dual-hop OFDM relay system with non-regenerative relay without FFT process
ISWCS'09 Proceedings of the 6th international conference on Symposium on Wireless Communication Systems
A predictive strategy for lifetime maximization in selective relay networks
SARNOFF'09 Proceedings of the 32nd international conference on Sarnoff symposium
Strict suboptimality of selection amplify-and-forward relaying under global channel information
IEEE Transactions on Communications
IEEE Transactions on Communications
A joint source and relay power allocation scheme for a class of MIMO relay systems
IEEE Transactions on Signal Processing
IEEE Transactions on Wireless Communications
Power-optimized amplify-and-forward multi-hop relaying systems
IEEE Transactions on Wireless Communications
IEEE Transactions on Communications
A new relay selection scheme for wireless relay networks
WiCOM'09 Proceedings of the 5th International Conference on Wireless communications, networking and mobile computing
A new power control scheme to improve QoE of relay user in cooperative systems
WiCOM'09 Proceedings of the 5th International Conference on Wireless communications, networking and mobile computing
A novel relay selection scheme with simplified power allocation for wireless relay networks
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Power and location optimization for decode-and-forward opportunistic cooperative networks
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Achieving exponential diversity in wireless multihop systems with regenerative relays
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Distributed power control for interference-limited cooperative relay networks
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Using limited feedback in power allocation design for a two-hop relay OFDM system
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Joint power allocation and relay selection for multiuser cooperative communication
IEEE Transactions on Wireless Communications
Effective capacity for interference and delay constrained cognitive radio relay channels
IEEE Transactions on Wireless Communications
Practical and general amplify-and-forward designs for cooperative networks
INFOCOM'10 Proceedings of the 29th conference on Information communications
Optimal power control and relay capacity for PLC-embedded cooperative systems
CCNC'10 Proceedings of the 7th IEEE conference on Consumer communications and networking conference
Robust power allocation algorithms for wireless relay networks
IEEE Transactions on Communications
Maximizing lifetime in relay cooperation through energy-aware power allocation
IEEE Transactions on Signal Processing
IEEE Communications Letters
Optimum energy allocation for cooperative networks with differential modulation
MILCOM'06 Proceedings of the 2006 IEEE conference on Military communications
MILCOM'06 Proceedings of the 2006 IEEE conference on Military communications
Energy-efficient cooperative communication in clustered wireless sensor networks
MILCOM'06 Proceedings of the 2006 IEEE conference on Military communications
Cooperative and constrained MIMO communications in wireless ad hoc/sensor networks
IEEE Transactions on Wireless Communications
Cross-layer design for multihop wireless relaying networks
IEEE Transactions on Wireless Communications
Hypoexponential power-delay profile and performance of multihop OFDM relay links
IEEE Transactions on Wireless Communications
Effects of Nodes Geometry and Power Allocation in Space-Time Coded Cooperative Wireless Systems
Mobile Networks and Applications
TwinsNet: a cooperative MIMO mobile sensor network
UIC'06 Proceedings of the Third international conference on Ubiquitous Intelligence and Computing
Wireless Communications & Mobile Computing
Concurrency and Computation: Practice & Experience
Wireless Communications & Mobile Computing
Opportunistic Relaying for MIMO Amplify-and-Forward Cooperative Networks
Wireless Personal Communications: An International Journal
International Journal of Autonomous and Adaptive Communications Systems
Wireless Personal Communications: An International Journal
Power Allocation for Amplify-and-Forward Relaying with Correlated Shadowing
Wireless Personal Communications: An International Journal
Wireless Personal Communications: An International Journal
| Hi-index | 0.02 |
Relayed transmission is a way to attain broader coverage by splitting the communication link from the source to the destination into several shorter links/hops. One of the main advantages of this communication technique is that it distributes the use of power throughout the hops. This implies longer battery life and lower interference introduced to the rest of the network. In this context, this paper investigates the optimal allocation of power over these links/hops for a given power budget. All hops are assumed to be subject to independent Rayleigh fading. Outage probability which is the probability that the link quality from source to destination falls below a certain threshold is used as the optimization criterion. Numerical results show that optimizing the allocation of power enhances the system performance, especially if the links are highly unbalanced in terms of their average fading power or if the number of hops is large. Interestingly, they also show that nonregenerative systems with optimum power allocation can outperform regenerative systems with no power optimization.