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ICASSP
2011
IEEE
9 years 10 months ago
Error-entropy based channel state estimation of spatially correlated MIMO-OFDM
—This paper deals with optimized training sequences to estimate multiple-input multiple-output orthogonal frequencydivision multiplexing (MIMO-OFDM) channel states in the presenc...
Hoang Duong Tuan, Ha Hoang Kha, Ha H. Nguyen
ICASSP
2011
IEEE
9 years 10 months ago
Adaptive scalable layer filtering process for video scheduling over wireless networks based on MAC buffer management
In this paper, the problem of scalable video delivery over a timevarying wireless channel is considered. Packet scheduling and buffer management in both Application and Medium Acc...
Nesrine Changuel, Nicholas Mastronarde, Mihaela va...
ICC
2009
IEEE
130views Communications» more  ICC 2009»
10 years 4 months ago
User Profiling: A Method for Limited Feedback in OFDMA Systems
In the OFDMA downlink, obtaining Channel State Information (CSI) from users is necessary for the Base Station (BS) to optimize network performance by intelligently allocating resou...
Vinay R. Majjigi, Rajiv Agarwal, John M. Cioffi
PIMRC
2010
IEEE
10 years 4 months ago
The role of channel states in secret key generation
In this work, we investigate secret key generation from channel states. We point out, by means of a packet-delaybased attack, that observing its own channel states is not the only ...
Xiang He, Aylin Yener
TIFS
2010
184views more  TIFS 2010»
10 years 4 months ago
Information-theoretically secret key generation for fading wireless channels
—The multipath-rich wireless environment associated with typical wireless usage scenarios is characterized by a fading channel response that is time-varying, location-sensitive, ...
Chunxuan Ye, Suhas Mathur, Alex Reznik, Yogendra S...
JSAC
2008
141views more  JSAC 2008»
10 years 5 months ago
On cooperative source transmission with partial rate and power control
The problem of transmitting a Gaussian source over a half-duplex fading relay channel with limited channel state feedback is studied. It is shown that under a short-term power cons...
Thanh Tùng Kim, Mikael Skoglund, Giuseppe C...
TWC
2008
99views more  TWC 2008»
10 years 6 months ago
Robust transmit processing for frequency-selective fading channels with imperfect channel feedback
Reliable channel state information at the transmitter (CSIT) can improve the throughput of wireless networks significantly. In a realistic scenario, there is a mismatch between th...
Christof Jonietz, Wolfgang H. Gerstacker, Robert S...
SIGMETRICS
2008
ACM
161views Hardware» more  SIGMETRICS 2008»
10 years 6 months ago
Noncooperative power control and transmission scheduling in wireless collision channels
We consider a wireless collision channel, shared by a finite number of mobile users who transmit to a common base station using a random access protocol. Mobiles are selfoptimizin...
Ishai Menache, Nahum Shimkin
JSAC
2006
128views more  JSAC 2006»
10 years 6 months ago
Optimized Transmission for Fading Multiple-Access and Broadcast Channels With Multiple Antennas
In mobile wireless networks, dynamic allocation of resources such as transmit powers, bit-rates, and antenna beams based on the channel state information of mobile users is known t...
Mehdi Mohseni, Rui Zhang, John M. Cioffi
JSAC
2008
125views more  JSAC 2008»
10 years 6 months ago
Optimal Competitive Algorithms for Opportunistic Spectrum Access
We consider opportunistic spectrum access (OSA) strategies for a transmitter in a multichannel wireless system, where a channel may or may not be available and the transmitter must...
Nicholas B. Chang, Mingyan Liu
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