Sciweavers

GLOBECOM
2009
IEEE
14 years 6 months ago
Channel-Aware Detection of Gray Hole Attacks in Wireless Mesh Networks
Abstract—Gray hole attacks (a.k.a selective forwarding attacks) are a special case of denial of service (DoS) attack, where a misbehaving mesh router just forwards a subset of th...
Devu Manikantan Shila, Yu Cheng, Tricha Anjali
GLOBECOM
2009
IEEE
14 years 6 months ago
On Downlink Network MIMO under a Constrained Backhaul and Imperfect Channel Knowledge
— Next generation mobile communications systems will most likely employ network MIMO in order to mitigate inter-cell interference and improve system fairness and spectral effici...
Patrick Marsch, Gerhard Fettweis
GLOBECOM
2009
IEEE
14 years 6 months ago
Robust Cooperative Relaying in a Wireless LAN: Cross-Layer Design and Performance Analysis
—A key technology in cooperative communications is distributed space-time coding (DSTC) which achieves spatial diversity gain from multiple relays. A novel DSTC, called randomize...
Pei Liu, Chun Nie, Elza Erkip, Shivendra S. Panwar
GLOBECOM
2009
IEEE
14 years 6 months ago
Sparse Decoding of Low Density Parity Check Codes Using Margin Propagation
—One of the key factors underlying the popularity of Low-density parity-check (LDPC) code is its iterative decoding algorithm that is amenable to efficient hardware implementati...
Ming Gu, Kiran Misra, Hayder Radha, Shantanu Chakr...
GLOBECOM
2009
IEEE
14 years 6 months ago
Random Linear Network Coding for Time-Division Duplexing: Field Size Considerations
Abstract— We study the effect of the field size on the performance of random linear network coding for time division duplexing channels proposed in [1]. In particular, we study ...
Daniel Enrique Lucani, Muriel Médard, Milic...
GLOBECOM
2009
IEEE
14 years 6 months ago
Distributed Physical Carrier Sensing Adaptation Scheme in Cooperative MAP WLAN
Abstract— Recently a multiple access point (MAP) architecture is proposed for wireless local area networks (WLAN) to exploit the spatial diversity by permitting each user to asso...
Yao Hua, Qian Zhang, Zhisheng Niu
GLOBECOM
2009
IEEE
14 years 6 months ago
Hole Reshaping Routing in Large-Scale Mobile Ad-Hoc Networks
—Mobile ad-hoc networks (MANETs) usually contain sparse or even empty regions called holes. The local optimum problem will occur when routing packets meet holes in the network. I...
Peiqiang Li, Guojun Wang, Jie Wu, Hong-Chuan Yang
GLOBECOM
2009
IEEE
14 years 6 months ago
Linear Beamforming for Multiuser MIMO Downlink Systems with Channel Orthogonalization
— Recently linear processing strategies have been developed to approach the optimum performance of dirty paper coding with low complexity in multiuser multiple-input multipleoutp...
Jin-Sung Kim, Sung Hyun Moon, Inkyu Lee
GLOBECOM
2009
IEEE
14 years 6 months ago
A Practical Approach for Providing QoS in Multichannel Ad-Hoc Networks Using Spectrum Width Adaptation
Abstract—Multichannel wireless networks provide the flexibility to utilize the available spectrum efficiently for achieving improved system performance in terms of throughput a...
Vijay Raman, Matthew C. Caesar