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TWC
2010
15 years 1 months ago
Performance analysis and power allocation for M-QAM cooperative diversity systems
An adaptive regenerate and forward cooperative diversity (CD) system using quadrature amplitude modulation (QAM) for a two-user cooperation is proposed. The proposed system can ach...
Veluppillai Mahinthan, Jon W. Mark, Xuemin Shen
TWC
2010
15 years 1 months ago
A Multimedia Cross-Layer Protocol for Underwater Acoustic Sensor Networks
Underwater multimedia acoustic sensor networks will enable new underwater applications such as multimedia coastal and tactical surveillance, undersea explorations, picture and vide...
Dario Pompili, Ian F. Akyildiz
TWC
2010
15 years 1 months ago
Bandwidth exchange: an energy conserving incentive mechanism for cooperation
Cooperative forwarding in wireless networks has shown to yield rate and diversity gains, but it incurs energy costs borne by the cooperating nodes. In this paper we consider an inc...
Dan Zhang, Ryoichi Shinkuma, Narayan B. Mandayam
TWC
2010
15 years 1 months ago
A Novel Graph-Based Suboptimal Multiuser Detector for FDM-CPM Transmissions
We consider a frequency division multiplexed (FDM) system where each user employs a continuous phase modulation (CPM), serially concatenated with an outer code through an interleav...
Amina Piemontese, Giulio Colavolpe
TWC
2010
15 years 1 months ago
A PAPR Reduction Method Based on Artificial Bee Colony Algorithm for OFDM Signals
Abstract--One of the major drawbacks of orthogonal frequency division multiplexing (OFDM) signals is the high peak to average power ratio (PAPR) of the transmitted signal. Many PAP...
Yajun Wang, Wen Chen, Chintha Tellambura
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