Sciweavers

ICC
2007
IEEE
137views Communications» more  ICC 2007»
14 years 6 months ago
On the Simulation of Tikhonov Random Processes
Abstract— A novel, simple and efficient method for the generation of Tikhonov (a.k.a. von Mises) random variates is proposed. In the proposed method, circular variates of a pres...
Giuseppe Thadeu Freitas de Abreu
ICC
2007
IEEE
120views Communications» more  ICC 2007»
14 years 6 months ago
On the Tails of the Distribution of the Sum of Lognormals
—Finding the distribution of the sum of lognormal We assume in this paper that the terms Yi are independent. The random variables is an important mathematical problem in probabil...
Sebastien S. Szyszkowicz, Halim Yanikomeroglu
ICC
2007
IEEE
14 years 6 months ago
UWB Based Positioning in Multipath Channels: CRBs for AOA and for Hybrid TOA-AOA Based Methods
— In this paper we consider UWB (ultra wide band) based positioning. We derive the CRBs (Cramer Rao bound) for AOA (angle of arrival) and for hybrid method using both AOA and TOA...
Achraf Mallat, Jérôme Louveaux, Luc V...
ICC
2007
IEEE
14 years 6 months ago
Robust Multibeam Opportunistic Schemes Under Quality of Service Constraints
— Scheduling in a Broadcast (BC) channel based on partial Channel State Information at the Transmitter (CSIT) is carried out in an opportunistic way, where several orthogonal bea...
Nizar Zorba, Ana I. Pérez-Neira
ICC
2007
IEEE
121views Communications» more  ICC 2007»
14 years 6 months ago
Global Control Plane Architecture for Cognitive Radio Networks
— This paper presents an architecture for adaptive cognitive radio networks based on the concept of a “global control plane”. The proposed control architecture uses a predete...
Xiangpeng Jing, Dipankar Raychaudhuri
ICC
2007
IEEE
14 years 6 months ago
A Non-beaconing ZigBee Network Implementation and Performance Study
— In this paper we present our implementation of a layered ZigBee network and the performance test results using non-beaconing networks. Adding the implemented network layer to a...
Magnus Armholt, Sakari Junnila, Irek Defée
ICC
2007
IEEE
220views Communications» more  ICC 2007»
14 years 6 months ago
Broadcasting Protocols for Multi-Radio Multi-Channel and Multi-Rate Mesh Networks
— A vast amount of broadcasting protocols has been developed for wireless ad hoc networks. To the best of our knowledge, however, these protocols assume a single-radio singlechan...
Min Song, Jun Wang, Qun Hao
ICC
2007
IEEE
124views Communications» more  ICC 2007»
14 years 6 months ago
Quantization Effects in Low-Density Parity-Check Decoders
−A class of combinatorial structures, called absorbing sets, strongly influences the performance of low-density paritycheck (LDPC) decoders. In particular, the quantization schem...
Zhengya Zhang, Lara Dolecek, Martin J. Wainwright,...
ICC
2007
IEEE
129views Communications» more  ICC 2007»
14 years 6 months ago
Time Sharing Policy in Wireless Networks for Variable Rate Transmission
— For most of wireless services with variable rate transmission, both average rate and rate oscillation are important performance metrics. One often needs to decide how much rate...
Xiaolu Zhang, Meixia Tao, Chun Sum Ng