Sciweavers

MOBICOM
2010
ACM
13 years 9 months ago
SMS-based web search for low-end mobile devices
Short Messaging Service (SMS) based mobile information services have become increasingly common around the world, especially in emerging regions among users with low-end mobile de...
Jay Chen, Lakshminarayanan Subramanian, Eric A. Br...
MOBICOM
2010
ACM
13 years 9 months ago
Design and experimental evaluation of multi-user beamforming in wireless LANs
Multi-User MIMO promises to increase the spectral efficiency of next generation wireless systems and is currently being incorporated in future industry standards. Although a signi...
Ehsan Aryafar, Narendra Anand, Theodoros Salonidis...
MOBICOM
2010
ACM
13 years 9 months ago
Directional antenna diversity for mobile devices: characterizations and solutions
We report a first-of-its-kind realization of directional transmission for smartphone-like mobile devices using multiple passive directional antennas, supported by only one RF chai...
Ardalan Amiri Sani, Lin Zhong, Ashutosh Sabharwal
MOBICOM
2010
ACM
13 years 9 months ago
Achieving single channel, full duplex wireless communication
This paper discusses the design of a single channel fullduplex wireless transceiver. The design uses a combination of RF and baseband techniques to achieve full-duplexing with min...
Jung Il Choi, Mayank Jain, Kannan Srinivasan, Phil...
MOBICOM
2010
ACM
13 years 9 months ago
Differential forms for target tracking and aggregate queries in distributed networks
Consider mobile targets moving in a plane and their movements being monitored by a network such as a field of sensors. We develop distributed algorithms for in-network tracking an...
Rik Sarkar, Jie Gao
MOBICOM
2010
ACM
13 years 9 months ago
Privacy vulnerability of published anonymous mobility traces
Mobility traces of people and vehicles have been collected and published to assist the design and evaluation of mobile networks, such as large-scale urban sensing networks. Althou...
Chris Y. T. Ma, David K. Y. Yau, Nung Kwan Yip, Na...
GLOBECOM
2008
IEEE
13 years 10 months ago
User Selection for Multiple-Antenna Broadcast Channel with Zero-Forcing Beamforming
Abstract—This paper investigates the zero-forcing (ZF) beamforming transmit strategy in the multiple-antenna multiuser downlink systems. We consider the case of mobile users equi...
Saeed Kaviani, Witold A. Krzymien
GLOBECOM
2008
IEEE
13 years 10 months ago
Distance-Enhancing Constrained Codes for Optical Recording Channels
Abstract— This paper proposes distance-enhancing constrained codes for optical recording channels. The repeated minimum transition runlength (RMTR) constraints are first investi...
Kui Cai, Kees A. Schouhamer Immink, Zhiliang Qin
GLOBECOM
2008
IEEE
13 years 10 months ago
DSL Crosstalk Coefficient Acquisition Using SNR Feedback
Phil Whiting, Alexei E. Ashikhmin, Gerhard Kramer,...
GLOBECOM
2008
IEEE
13 years 10 months ago
Towards the Performance of ML and the Complexity of MMSE - A Hybrid Approach
—In this paper, we present a near ML-achieving sphere search technique that reduces the number of search operations significantly over existing sphere decoding (SD) algorithms. ...
Byonghyo Shim, Jun Won Choi, Insung Kang