Sciweavers

34 search results - page 4 / 7
» Transmit Optimization for Relay-Based Cellular OFDMA Systems
Sort
View
PIMRC
2008
IEEE
14 years 1 months ago
Resource allocation in OFDMA downlink with reduced feedback overhead
— Consider the problem of resource allocation on the downlink of a cellular OFDMA system. A fairness constraint is defined by a minimum data rate, a maximum bit-error rate and a...
Ayman Alsawah, Inbar Fijalkow
CISS
2008
IEEE
13 years 9 months ago
Client-centric fractional frequency reuse based on user cooperation in OFDMA networks
Abstract--This paper proposes client-centric fractional frequency reuse (CC-FFR) techniques for interference mitigation in OFDMA-based cellular wireless networks. In this framework...
Stefan Geirhofer, Ozgur Oyman
CORR
2008
Springer
130views Education» more  CORR 2008»
13 years 6 months ago
Spectrum Allocation in Two-Tier Networks
Abstract-- Two-tier networks, comprising a conventional cellular network overlaid with shorter range hotspots (e.g. femtocells, distributed antennas, or wired relays), offer an eco...
Vikram Chandrasekhar, Jeffrey G. Andrews
WIOPT
2005
IEEE
14 years 1 months ago
Distributed Power Allocation and Scheduling for Parallel Channel Wireless Networks
In this paper we develop distributed approaches for power allocation and scheduling in wireless access networks. We consider a model where users communicate over a set of parallel...
Xiangping Qin, Randall Berry
GLOBECOM
2009
IEEE
14 years 2 months ago
The Resource-Optimized Differentially Modulated Hybrid AF/DF Cooperative Cellular Uplink
—In multi-user cellular uplinks cooperating mobiles may share their antennas in order to achieve transmit diversity by formig a virtual antenna array (VAA) in a distributed fashi...
Li Wang, Lajos Hanzo