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GLOBECOM
2008
IEEE
9 years 1 months ago
On the Impact of Inter-Cell Interference in LTE
—While intercell interference coordination (ICIC) for the downlink of multi-cell systems in general and orthogonal frequency division multiple access (OFDMA) networks in particul...
András Rácz, Norbert Reider, G&aacut...
GLOBECOM
2008
IEEE
9 years 1 months ago
A Distributed Directional-to-Directional MAC Protocol for Asynchronous Ad Hoc Networks
— The use of directional antennae in ad hoc networks has received growing attention in recent years. However, most existing directional MAC protocols assume interchangeable direc...
Emad Shihab, Lin Cai, Jianping Pan
GLOBECOM
2008
IEEE
9 years 1 months ago
Probabilistic Path Selection in Opportunistic Cognitive Radio Networks
Abstract—We present a novel routing approach for multichannel cognitive radio networks (CRNs). Our approach is based on probabilistically estimating the available capacity of eve...
Hicham Khalife, Satyajeet Ahuja, Naceur Malouch, M...
GLOBECOM
2008
IEEE
9 years 6 months ago
Optimum MIMO-OFDM Receivers with Imperfect Channel State Information
—Channel estimation inaccuracy is known to affect significantly the error performance of coded communication systems. This applies in particular to broadband MIMO channels, ofte...
Giulio Coluccia, Erwin Riegler, Christoph F. Meckl...
GLOBECOM
2008
IEEE
9 years 6 months ago
Opportunity Detection for OFDMA Systems with Timing Misalignment
— Accurate detection of spectrum opportunities within the frequency band of an orthogonal frequency division multiple access (OFDMA) system is a critical requirement for the real...
Mustafa E. Sahin, Ismail Güvenç, Moo-R...
GLOBECOM
2008
IEEE
9 years 6 months ago
Lowering LDPC Error Floors by Postprocessing
−A class of combinatorial structures, called absorbing sets, strongly influences the performance of low-density paritycheck (LDPC) decoders at low error rates. Past experiments h...
Zhengya Zhang, Lara Dolecek, Borivoje Nikolic, Ven...
GLOBECOM
2008
IEEE
9 years 6 months ago
High-Throughput Non-Orthogonal Interleaved Random Space-Time Coding for Multi-Source Cooperation
Abstract— In this paper, we propose a novel distributed Interleaved Random Space-Time Code (IR-STC) designed for MultiSource Cooperation (MSC) employing various relaying techniqu...
Rong Zhang, Lajos Hanzo
GLOBECOM
2008
IEEE
9 years 6 months ago
Blind Turbo Channel Estimation of QAM Signals Exploiting Code Constraints
—We present a blind turbo equalizer for QAM signals that exploits the statistics that a channel code imposes on the transmitted signal. The receiver is an adaptation of previous ...
André Fonseca dos Santos, Wolfgang Rave, Ge...
GLOBECOM
2008
IEEE
9 years 6 months ago
Self-Interference Aided Channel Estimation in Two-Way Relaying Systems
—In this paper, we propose a novel channel estimation scheme for the broadcast phase of the newly invented twoway relaying technique. Instead of using pilot sequences, we exploit...
Jian Zhao, Marc Kuhn, Armin Wittneben, Gerhard Bau...
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