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In this paper, we study the reverse link (RL) capacity of a co-channel macrocell-femtocell network, where the macrocell and femtocell networks share the same carrier. The analysis is done based on an outage probability criterion, and we use this analysis further to compare the capacities of different practical multi-carrier macrocell-femtocell deployment strategies.
Radio link failure (RLF) is a common phenomenon in all radio access technologies like GSM or UMTS or wireless-LAN etc., when the radio channel signal strength is weak to continue with the application. RLF is a local event detected by mobile handset (or user equipment-UE) immediately and network nodes come to know later. It is also difficult to recover for the UE due to low signal. Hence, RLF has to...
Multi-hop relay based WiMAX architecture is one of the proposed solutions to connectivity in difficult terrains and an economical solution for developing/under-developed countries. This paper analyzes a hybrid multi-hop architecture consists of mesh and PMP both types of connections. Architecture for relay station (RS) has been proposed to provide such hybrid connectivity. Moreover, to provide end-to-end...
In this paper a novel interoperability strategy and architecture is described that guarantees the quality of service (QoS) requirements for applications originating in IEEE 802.11e based WLAN to a serving IEEE 802.16 based WirelessMAN and vice versa. The architecture for mapping QoS requirements makes use of inherent MAC layer convergence flexibilities available in these networks along with features...
Uplink communication in a cellular radio network is considered where the base station in each cell employs linear or decision feedback multiuser receivers. We address the problem of minimizing the total of the user transmit powers over all linear or decision feedback multiuser receivers, such that all the users achieve their signal-to-interference ratio (SIR) targets. A distributed algorithm is obtained...
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