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ICC
2009
IEEE
130views Communications» more  ICC 2009»
8 years 9 months ago
User Profiling: A Method for Limited Feedback in OFDMA Systems
In the OFDMA downlink, obtaining Channel State Information (CSI) from users is necessary for the Base Station (BS) to optimize network performance by intelligently allocating resou...
Vinay R. Majjigi, Rajiv Agarwal, John M. Cioffi
IWCMC
2009
ACM
9 years 6 months ago
Effect of feedback prediction on OFDMA system throughput
In wireless communication systems, adaptive modulation and coding (AMC) is used to improve the downlink (DL) spectral efficiency by exploiting the underlying channel condition. Ho...
Mohammad Abdul Awal, Lila Boukhatem
INFOCOM
2006
IEEE
9 years 6 months ago
On Hybrid Collision Control for IEEE 802.11 Ad-Hoc Networks
— We present in this work a new mechanism based on an innovative hybrid approach for traffic and collision control in wireless ad hoc networks. We combine the well known equatio...
Hicham Khalife
WCNC
2008
IEEE
9 years 6 months ago
Two-Stage Code Acquisition Employing Search Space Reduction and Iterative Detection in the DS-UWB Downlink
— In this paper we propose and investigate an iterative code acquisition scheme assisted by both search space reduction and iterative Massage Passing (MP), which was designed for...
Seung Hwan Won, Lajos Hanzo
ICITA
2005
IEEE
9 years 5 months ago
QoS Functions and Theorems for Moving Wireless Networks
Optimum theorems for combining QoS metrics to reduce computation time in nodes (routers) is proposed based on fundamental theorems on QoS metrics. The proposed theorems unify sele...
Johnson I. Agbinya
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