Sciweavers

720 search results - page 100 / 144
» A Weighting Scheme for Star-Graphs
Sort
View
GLOBECOM
2007
IEEE
14 years 4 months ago
An Optimal Strategy for Cooperative Spectrum Sensing in Cognitive Radio Networks
— Spectrum sensing is a key enabling functionality in cognitive radio (CR) networks, where the CRs act as secondary users that opportunistically access free frequency bands. Due ...
Zhi Quan, Shuguang Cui, Ali H. Sayed
GLOBECOM
2007
IEEE
14 years 4 months ago
Decode-and-Forward Cooperative Relay with Multi-User Detection in Uplink CDMA Networks
Abstract— The use of multi-user detection (MUD) in a cooperative CDMA network is investigated for the uplink in synchronous CDMA systems. Suppose that, at any instant in time, pa...
Wan-Jen Huang, Yao-Win Hong, C. C. Jay Kuo
ICC
2007
IEEE
170views Communications» more  ICC 2007»
14 years 4 months ago
A Post-Detection SNR-Aided Timing Recovery Loop for MIMO-OFDM Receivers
--- In this paper, a novel third-order Phase Lock Loop (PLL) is proposed for the timing recovery in MIMO-OFDM systems. It differentiates from conventional timing recovery algorithm...
Wenzhen Li, Masayuki Tomisawa
ICMCS
2007
IEEE
130views Multimedia» more  ICMCS 2007»
14 years 4 months ago
Wyner-Ziv Video Coding Based on Turbo Codes Exploiting Perfect Knowledge of Parity Bits
In a Wyner-Ziv video coding system based on turbo codes, parity bits are generated for a Wyner-Ziv frame and transmitted to the decoder. In this context of distributed source codi...
Hu Chen, Eckehard G. Steinbach
ISCAS
2007
IEEE
117views Hardware» more  ISCAS 2007»
14 years 4 months ago
Context-based Arithmetic Coding Reexamined for DCT Video Compression
—This paper presents a new context modeling technique for arithmetic coding of DCT coefficients in video compression. A key feature of the new technique is the inclusion of all p...
Li Zhang, Xiaolin Wu, Ning Zhang, Wen Gao, Qiang W...