Extended Dominating Set and Its Applications in Ad Hoc Networks Using Cooperative Communication
IEEE Transactions on Parallel and Distributed Systems
Energy balancing cooperative diversity for wireless sensor networks
International Journal of Communication Networks and Distributed Systems
Alternating opportunistic large arrays in broadcasting for network lifetime extension
IEEE Transactions on Wireless Communications
Target tracking in wireless sensor networks using compressed Kalman filter
International Journal of Sensor Networks
Wireless Aspects of Telehealth
Wireless Personal Communications: An International Journal
Multicasting in large random wireless networks: bounds on the minimum energy per bit
ISIT'09 Proceedings of the 2009 IEEE international conference on Symposium on Information Theory - Volume 4
A new approach to improve connectivity of wireless sensor network node
WiCOM'09 Proceedings of the 5th International Conference on Wireless communications, networking and mobile computing
Investigating multiple alternating cooperative broadcasts to enhance network longevity
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Energy efficient cooperative broadcasting in wireless networks
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Minimum energy per bit for wideband wireless multicasting: performance of decode-and-forward
INFOCOM'10 Proceedings of the 29th conference on Information communications
OLA with transmission threshold for strip networks
MILCOM'09 Proceedings of the 28th IEEE conference on Military communications
Proceedings of the eleventh ACM international symposium on Mobile ad hoc networking and computing
Analysis of a simple recruiting method for cooperative routes and strip networks
IEEE Transactions on Wireless Communications
Repetition-based cooperative broadcasting for vehicular ad-hoc networks
Computer Communications
Internet of networks: is the future internet a cognitive radio application?
Proceedings of the 4th International Conference on Cognitive Radio and Advanced Spectrum Management
Wireless Personal Communications: An International Journal
Cooperation of multiple mobile sensors with minimum energy cost for mobility and communication
Information Sciences: an International Journal
Joint optimal AF relay assignment and power allocation in wireless cooperative networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
Performance Analysis of Cooperative Multi-hop Strip Networks
Wireless Personal Communications: An International Journal
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Broadcasting is a method that allows the distributed nodes in a wireless sensor network to share its data efficiently among each other. Due to the limited energy supplies of a sensor node, energy efficiency has become a crucial issue in the design of broadcasting protocols. In this paper, we analyze the energy savings provided by a cooperative form of broadcast, called the opportunistic large arrays (OLA), and compare it to the performance of conventional multi-hop networks where no cooperation is utilized for transmission. The cooperation in OLA allows the receivers to utilize for detection the accumulation of signal energy provided by the transmitters that are relaying the same symbol. In this work, we derive the optimal energy allocation policy that minimizes the total energy cost of the OLA network subject to the SNR (or BER) requirements at all receivers. Even though the cooperative broadcast protocol provides significant energy savings, we prove that the optimum energy assignment for cooperative networks is an NP-complete problem and, thus, requires high computational complexity in general. We then introduce several suboptimal yet scalable solutions and show the significant energy-savings that one can obtain even with the approximate solutions