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ICASSP
2011
IEEE
8 years 2 months ago
Analysis of the pilot contamination effect in very large multicell multiuser MIMO systems for physical channel models
We consider multicell multiuser MIMO systems with a very large number of antennas at the base station. We assume that the channel is estimated by using uplink training sequences, ...
Hien Quoc Ngo, Thomas L. Marzetta, Erik G. Larsson
ICASSP
2011
IEEE
8 years 2 months ago
On optimal precoding in wireless multicast systems
Precoding has been extensively studied for point-to-point communications, including the problems of constructing the precoding codebook and selecting the best precoder. This paper...
Yiyue Wu, Haipeng Zheng, A. Robert Calderbank, San...
TWC
2010
8 years 5 months ago
Distributed Multicell-MISO Precoding Using the Layered Virtual SINR Framework
In this letter, we address the problem of distributed multi-antenna cooperative transmission in a cellular system. Most research in this area has so far assumed that base stations ...
Randa Zakhour, David Gesbert
ETT
2010
227views Education» more  ETT 2010»
8 years 5 months ago
Throughput enhancement through femto-cell deployment
This paper studies the impact of femto-cell underlay deployment that share radio frequency resources with urban macro-cells. Due to the random and uncoordinated deployment, femto-c...
Zubin Bharucha, Harald Haas, Andreas Saul, Gunther...
TSP
2011
210views more  TSP 2011»
8 years 5 months ago
Physical Layer Network Coding and Precoding for the Two-Way Relay Channel in Cellular Systems
In this paper, we study the application of physical layer network coding to the joint design of uplink and downlink transmissions, where the base station and the relay have multip...
Zhiguo Ding, Ioannis Krikidis, John S. Thompson, K...
TMM
2011
182views more  TMM 2011»
8 years 5 months ago
Scalable Video Multicast in Hybrid 3G/Ad-Hoc Networks
Mobile video broadcasting service, or mobile TV, is expected to become a popular application for 3G wireless network operators. Most existing solutions for video Broadcast Multica...
Sha Hua, Yang Guo, Yong Liu, Hang Liu, Shivendra S...
CORR
2011
Springer
183views Education» more  CORR 2011»
8 years 5 months ago
Detecting Separation in Robotic and Sensor Networks
In this paper we consider the problem of monitoring detecting separation of agents from a base station in robotic and sensor networks. Such separation can be caused by mobility an...
Chenda Liao, Harshavardhan Chenji, Prabir Barooah,...
GIS
2010
ACM
8 years 7 months ago
Energy-efficient processing of spatio-temporal queries in wireless sensor networks
Research on Moving Object Databases (MOD) has resulted in sophisticated query mechanisms for moving objects and regions. Wireless Sensor Networks (WSN) support a wide range of app...
Markus Bestehorn, Klemens Böhm, Erik Buchmann...
ICC
2009
IEEE
151views Communications» more  ICC 2009»
8 years 8 months ago
Performance Evaluation of Multiple-Relay Cooperative ARQ Strategies for Mobile Networks
In Cooperative Automatic Repeat reQuest (C-ARQ) protocols, one or more nodes can act as relays, collaborating in the frame retransmission process between a sender and a destination...
Juan J. Alcaraz, Joan García-Haro
PIMRC
2010
IEEE
8 years 8 months ago
Precoding and feedback schemes for a MIMO backhaul link in the presence of interference
The focus of this paper is on the precoding and feedback strategies for a radio backhaul link between an access base station (ABS) and the hub base station (HBS) in the presence of...
Daniel Sacristán-Murga, Antonio Pascual-Ise...
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