Sciweavers

TWC
2008
150views more  TWC 2008»
13 years 4 months ago
Convex approximation techniques for joint multiuser downlink beamforming and admission control
Multiuser downlink beamforming under quality of service (QoS) constraints has attracted considerable interest in recent years, because it is particularly appealing from a network o...
Evaggelia Matskani, Nicholas D. Sidiropoulos, Zhi-...
TWC
2008
99views more  TWC 2008»
13 years 4 months ago
MAP-Based Code-Aided Hypothesis Testing
This contribution deals with code-aided hypothesis testing for wireless digital receivers. We provide a theoretical justification for a hypothesis testing algorithm that was previo...
Cédric Herzet, Henk Wymeersch, Frederik Sim...
TWC
2008
106views more  TWC 2008»
13 years 4 months ago
Spatial Multiplexing Architectures with Jointly Designed Rate-Tailoring and Ordered BLAST Decoding - Part I: Diversity-Multiplex
Abstract-- The V-BLAST (vertical Bell Labs layered Space-Time) architecture involves independent coding/decoding per antenna (layer) with equal rate and power per antenna and a fix...
Yi Jiang, Mahesh K. Varanasi
TWC
2008
156views more  TWC 2008»
13 years 4 months ago
Low-Complexity Map Channel Estimation for Mobile MIMO-OFDM Systems
Abstract-- This paper presents a reduced-complexity maximum a posteriori probability (MAP) channel estimator with iterative data detection for orthogonal frequency division multipl...
Jie Gao, Huaping Liu
TWC
2008
172views more  TWC 2008»
13 years 4 months ago
A Software-Defined Radio System for Backscatter Sensor Networks
Backscatter radio is proposed for sensor networks. In that way, the transmitter for each sensor is simplified to a transistor connected to an antenna and therefore, the cost for ea...
Giovanni Vannucci, Aggelos Bletsas, Darren Leigh
TWC
2008
132views more  TWC 2008»
13 years 4 months ago
Robust high throughput space time block codes using parallel interference cancellation
We present a space-time coded system which achieves high throughput and good performance using lowcomplexity detection and decoding. We focus on a Rate 2 quasiorthogonal space-time...
Nicholas S. J. Pau, Desmond P. Taylor, Philippa A....
TWC
2008
152views more  TWC 2008»
13 years 4 months ago
Bandwidth-Guaranteed Fair Scheduling with Effective Excess Bandwidth Allocation for Wireless Networks
Traffic scheduling is key to the provision of quality of service (QoS) differentiation and guarantees in wireless networks. Unlike its wireline counterpart, wireless communications...
Yaxin Cao, Ka-Cheong Leung, Victor O. K. Li
TWC
2008
106views more  TWC 2008»
13 years 4 months ago
Cooperative communications protocol for multiuser OFDM networks
This paper proposes a relay-based scheme where a fixed number of relays are utilized to design an OFDM cooperative protocol. By exploiting limited feedback from the destination ter...
W. Pam Siriwongpairat, Ahmed K. Sadek, K. J. Ray L...
TWC
2008
109views more  TWC 2008»
13 years 4 months ago
Using the physical layer for wireless authentication in time-variant channels
Abstract--The wireless medium contains domain-specific information that can be used to complement and enhance traditional security mechanisms. In this paper we propose ways to expl...
Liang Xiao, Larry J. Greenstein, Narayan B. Manday...
TWC
2008
148views more  TWC 2008»
13 years 4 months ago
ARMA Synthesis of Fading Channels
Computationally scalable and accurate estimation, prediction, and simulation of wireless communication channels is critical to the development of more adaptive transceiver algorith...
Hani Mehrpouyan, Steven D. Blostein