Sciweavers

501 search results - page 68 / 101
» Communication Lower Bounds Using Dual Polynomials
Sort
View
INFOCOM
2007
IEEE
14 years 3 months ago
Joint Optimal Channel Probing and Transmission in Collocated Wireless Networks
— We consider a collocated wireless network where all links contend for a given channel and each link can hear others’ transmissions. Due to channel fading, the link condition ...
Dong Zheng, Junshan Zhang
PIMRC
2010
IEEE
13 years 6 months ago
Fast varying channel estimation in downlink LTE systems
This paper tackles the problem of fast varying channel estimation in LTE systems. Particular attention is given to downlink transmission where OFDMA is used as the multiple access ...
Youssef El Hajj Shehadeh, Serdar Sezginer
INFOCOM
2010
IEEE
13 years 6 months ago
On Computing Compression Trees for Data Collection in Wireless Sensor Networks
We address the problem of efficiently gathering correlated data from a wireless sensor network, with the aim of designing algorithms with provable optimality guarantees, and unders...
Jian Li, Amol Deshpande, Samir Khuller
SECON
2010
IEEE
13 years 6 months ago
Secondis: An Adaptive Dissemination Protocol for Synchronizing Wireless Sensor Networks
Reliability and predictability of the timing behavior have shown to be major issues for wireless sensor network deployments. Real-time requirements presented by several application...
Federico Ferrari, Andreas Meier, Lothar Thiele
GLOBECOM
2007
IEEE
14 years 3 months ago
Diversity Multiplexing Tradeoff in Multiple Antenna Multiple Access Channels with Partial CSIT
Abstract— We derive a lower bound on the diversitymultiplexing tradeoff for multiple antenna multiple access channels using temporal power control (PC). We quantify the substanti...
Kaushik Josiam, Dinesh Rajan, Mandyam D. Srinath