174 search results - page 3 / 35 » On the Signaling Overhead in Dynamic OFDMA Wireless Systems |
ICC
2007
IEEE
14 years 1 months ago
2007
IEEE
— In interference-limited wireless cellular systems, interference avoidance and interference averaging are widely adopted to combat co-channel interference. In different types of...
MOBIHOC
2009
ACM
14 years 7 months ago
2009
ACM
Femto cells are a cost-effective means of providing ubiquitous connectivity in future broadband wireless networks. While their primary purpose has been to improve coverage in curr...
GLOBECOM
2006
IEEE
14 years 1 months ago
2006
IEEE
Abstract— In this paper, we propose a distributed opportunistic access scheme for uplink OFDMA systems. The sub-carriers are grouped into several sub-channels. Users access these...
TWC
2010
13 years 2 months ago
2010
Abstract-- Relaying and orthogonal frequency division multiple access (OFDMA) are the accepted technologies for emerging wireless communications standards. The activities in many w...
IWCMC
2010
ACM
14 years 12 days ago
2010
ACM
Line-of-sight (LoS) time-of-arrival (ToA) is one of key parameters for network-based localization techniques. Its estimation accuracy depends on the bandwidth of transmitted signa...