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Advances in wireless technology have resulted in pervasive deployment of devices of a high variability in form factors, memory and computational ability. The need for maintaining continuous connections that deliver data with high reliability necessitate re-thinking of conventional design of the transport layer protocol. This paper investigates the use of Q-learning in TCP cwnd adaptation during the...
This paper focuses on the problem of throughput maximization in a self-powered point-to-point Multi-Input Multi-Output (MIMO) wireless communication system, the transmitter of which is powered only by energy harvested from ambient radio signals. The transmitter follows a save-then-transmit protocol in transmission frames. The protocol requires the system first carry out the energy harvesting process...
In this paper, a novel wireless cooperation scheme with complex-field network coding (CFNC), CFNC-amplify-and-forward (CFNC-AF), is developed for multi-way relay (MWR) communications. In this scheme, orthogonal CFNC vectors and joint signal detection are employed to accomplish information exchange among N(N > 2) user nodes via a helping relay node, and a multi-phase transmission protocol is designed...
QAM (QoS-aware Adaptive Middleware) is a software framework for developing distributed applications intended to operate in tactical MANET environments1. Developing distributed applications for tactical MANETs is challenging due to the dynamic network capacity and competing priorities across multiple applications. QAM allows a developer to focus on the processing aspects of the application by abstracting...
Developing distributed applications for MANETs is a complex task due to the latter's bandwidth constrained nature. Further, in tactical MANETs, there is a need to prioritize traffic generated by distributed applications so that high priority traffic gets preferential access to the bandwidth constrained communication medium. Finally, applications must be designed to accommodate network bandwidth and...
In order to sustain a longer lifetime, an important research in the Wireless Sensor Network (WSN) is to improve power efficiency. Review of many technologies in the involvement, the essential idea is to remove power redundancy. The GAF algorithm is able to get a WSN with longer lifetime by reducing the node redundancy in transmitting data, On the other hand, the CODE, based on the GAF algorithm, is...
Scheduling algorithms are very important for the performance and capacity of cellular systems. In this paper, we present an enhanced proportional fair scheduling algorithm for HSDPA. Scheduling performance is evaluated with different network scenarios for streaming of multimedia services. The streaming service model is based on 3GPP protocols.
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