12 years 10 months ago
Impulsive interference mitigation in ad hoc networks based on alpha-stable modeling and particle filtering
In this paper, we tackle the problem of interference mitigation in ad hoc networks. In such context, the multiple access interference (MAI) is known to be of an impulsive nature. ...
Nouha Jaoua, Emmanuel Duflos, Philippe Vanheeghe, ...
146views more  TCOM 2008»
13 years 5 months ago
Noncoherent eigenbeamforming and interference suppression for outdoor OFDM systems
Abstract--We investigate a new approach to uplink communications in wideband outdoor cellular systems that can take advantage of multiple antennas at the base station in a scalable...
Noah Jacobsen, Gwen Barriac, Upamanyu Madhow
140views more  TWC 2008»
13 years 6 months ago
Joint Twofold-Iterative Channel Estimation and Multiuser Detection for MIMO-OFDM Systems
This paper presents an iterative receiver for Multiple-Input Multiple-Output (MIMO) Orthogonal Frequency Division Multiplexing (OFDM) systems over time-variant wireless channels. T...
Pierluigi Salvo Rossi, Rald R. Müller
142views more  JSAC 2007»
13 years 6 months ago
Non-Cooperative Resource Competition Game by Virtual Referee in Multi-Cell OFDMA Networks
— In this paper, a distributive non-cooperative game is proposed to perform sub-channel assignment, adaptive modulation, and power control for multi-cell multi-user Orthogonal Fr...
Zhu Han, Zhu Ji, K. J. Ray Liu
73views more  TCOM 2008»
13 years 6 months ago
Pulse Construction in OFDM Systems Via Convex Optimization
In order to reduce the inter-carrier interference (ICI) produced by frequency offset in OFDM systems, we set up an optimization problem to find the transmission pulse which maximi...
J. Xu, Thomas Strohmer
92views more  JCM 2006»
13 years 6 months ago
Automatic Detection of the Guard Interval Length in OFDM System
Orthogonal Frequency Division Multiplexing (OFDM) has been increasingly used in wireless broadband communication systems. Guard interval (GI) is used in OFDM system to reduce inter...
Li Zou
186views Education» more  CORR 2010»
13 years 6 months ago
Cooperative Sequential Spectrum Sensing Algorithms for OFDM
This paper considers the problem of spectrum sensing in cognitive radio networks when the primary user is using Orthogonal Frequency Division Multiplexing (OFDM). For this we devel...
ArunKumar Jayaprakasam, Vinod Sharma, Chandra R. M...
13 years 7 months ago
Analysis of User Specific Interleavers for Iterative Multi-User Detection System
—Interleave division multiple access (IDMA) and orthogonal frequency division multiplexing – interleave division multiple access (OFDM-IDMA) have been proposed for beyond third...
Omer Nawaz, Waqas Nasir, Zia Bhadiar, Imtiaz Ahmed...
13 years 7 months ago
Performance Analysis of DCF Access Schemes over IEEE 802.11A Physical Layer
IEEE 802.11a is one of the latest standards to be released by the IEEE Project 802. It has specified a new physical layer (PHY) to support higher data rates, known as the orthogon...
S. Selvakennedy
13 years 10 months ago
Formal Analysis and Verification of an OFDM Modem Design using HOL
In this paper we formally specify and verify an implementation of the IEEE802.11a standard physical layer based OFDM (Orthogonal Frequency Division Multiplexing) modem using the HO...
Abu Nasser Mohammed Abdullah, Behzad Akbarpour, So...