Latest trend in research tend to fulfill requirements of the most talked about 5G networks. These networks need to be be engineered in terms of cost, energy and spectral efficiency, number of connected devices and latency. Cognitive Radio (CR) is one of the promising techniques to meet the above mentioned requirements that operates at microwave frequencies and exploits underutilized spectrum ba...

This paper studies optimal power allocation to minimize symbol error rate (SER) of amplify-and-forward cooperative diversity networks. First, we analytically solve optimal power allocation problem to minimize SER for three different scenarios, namely, multi-branch single-relay, single-branch multi-relay and multi-branch multi-relay cooperative diversity networks, all subject to a given total re...

Driven by advances in signal processing and multiuser detection (MUD) technologies, it has become possible for a wireless node to simultaneously receive multiple signals from other transmitters. In order to take full advantage of MUD in multi-packet reception (MPR) capable wireless networks, it is highly desirable to make the compound signals frommultiple transmitters more separable on its cons...

This paper focuses on the network capacity maximization problem through joint cell association and user scheduling with multiple carrier aggregation (CA) in the heterogeneous networks (HetNets). For the downlink transmission, the proposed joint maximization problem is reformulated from single data flow into multiple data flow through carrier aggregated HetNets, in which the users could associat...

In this paper, we invoke sub-carrier pairing based sum-rate maximization problem in wireless cooperative networks. Two-way relaying (TWR) with amplify-and-forward (AF) protocol is considered in multi-user, multi-carrier environment over two-hop with single fixed relay station (FRS), in which direct link between source and destination is not available. We formulate to maximize the overall sumrat...

In recent years, wireless ad hoc networks have become increasingly popular in both military and civilian applications due to its capability of building networks without the need for a pre-existing infrastructure. While a number of studies have been carried out to study the performance of IEEE 802.11 DCF in single-cell wireless LANs, the analysis of IEEE 802.11 DCF in multi-hop wireless networks...

Advances in wireless personal area networking p. 3 A comparative study of routing strategies for wireless sensor networks : are MANET protocols good fit? p. 5 Detecting disruptive routers in wireless sensor networks p. 19 Energy-efficient data dissemination in sensor networks using distributed dynamic tree management p. 32 Virtual coordinates with backtracking for void traversal in geographic r...