Results 241 to 250 of about 1,255,320 (283)

Coding for cooperation and relaying

2009 7th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks, 2009
Cooperative communications refers to network communication where nodes cooperate, rather than compete, to transmit data for themselves and others. The main goal of this talk is to review basic strategies for cooperative communications with particular emphasis on a method called “compress-and-forward”.
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Coded Cooperation in OFDMA Systems

2006 40th Annual Conference on Information Sciences and Systems, 2006
A novel time-frequency cooperative communication strategy is proposed for coded OFDMA system over quasi-static frequency-selective Rayleigh fading. To take advantage of the frequency dispersion, each user transmits his partner's and his own data on different subcarriers spreading over the entire available bandwidth.
Jun Niu, I-Tai Lu
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LDPC-based coded cooperative jamming codes

2012 IEEE Information Theory Workshop, 2012
We present a practical coded cooperative jamming scheme for the problem of secure communications over the two-way wiretap channel. We design low-density parity-check (LDPC) based codes whose codewords interfere at the eavesdropper's terminal, thus providing secrecy.
Alexandre J. Pierrot, Matthieu R. Bloch
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Coordinate Interleaved Coded Cooperation

2007 IEEE 18th International Symposium on Personal, Indoor and Mobile Radio Communications, 2007
In this paper, a two-user cooperative diversity scheme is proposed where coded cooperation and modulation diversity techniques are properly combined to take their full advantage. Users perform selective cooperation in transmission according to the correct estimation of symbols from their partners.
Oruç, Özgür, Aygölü, Ümit
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Iconic framework for cooperative coding

Proceedings of the 19th International Conference on Computer Systems and Technologies, 2018
The description of an innovative framework built on top of Web-based visual programming environment is the primary aim of this contribution. In the last decade, many frameworks oriented to visual languages have been introduced in literature to improve the skill on programming languages, but at the best of our knowledge, no framework has been specially ...
Guido Averna, Biagio Lenzitti, Davide Taibi 0002, Domenico Tegolo   +3 more
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Coded Cooperation in Wireless Communications: Space-Time Transmission and Iterative Decoding

IEEE Transactions on Signal Processing, 2004
—When mobiles cannot support multiple antennas due to size or other constraints, conventional space-time coding cannot be used to provide uplink transmit diversity.
Mohamed Fadel Shady, A Hedayat, T E Hunter   +2 more
exaly   +1 more source

Bit-cooperative coded modulation

2013 IEEE Wireless Communications and Networking Conference (WCNC), 2013
A new coded modulation technique, termed bit-cooperative coded modulation (BCCM), is proposed in this paper. By introducing a pseudo-random sequence at the transmitter to systematic low-density parity-check (LDPC) codes, the receiver enjoys the benefits of increased minimum Euclidean distance and the Hamming distance when applying this side-information
Zhiyong Chen 0002, Bin Xia 0001, Hui Liu 0011   +2 more
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Code Combining in Cooperative Communication

IEICE Transactions on Communications, 2008
It is well known that cooperative transmission among the single antenna wireless nodes and a proper combining at destination can obtain spatial diversity. In this paper, we introduce a new form of combining technique in cooperative communication.
Asaduzzaman, Hyung Yun Kong
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Coded Cooperation Under Slow Fading, Fast Fading, and Power Control

, 2002
User cooperation provides uplink transmit diversity even when mobile units cannot accommodate multiple antennas due to size constraints. Recently, a versatile user cooperation method called coded cooperation diversity was introduced, in which standard ...
T E Hunter
exaly   +1 more source

Coded cooperation for BICM-OFDM

2012 IEEE 23rd International Symposium on Personal, Indoor and Mobile Radio Communications - (PIMRC), 2012
Coded cooperation is an attractive user cooperation scheme for wireless systems, where different parts of a coded packet are transmitted over different channels. In this paper, we propose a new approach to improve the performance of coded cooperation.
Toufiqul Islam, Robert Schober, Ranjan K. Mallik   +2 more
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