Results 151 to 160 of about 12,295 (187)
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On the performance of adaptive relaying with ARQ
2010 International ITG Workshop on Smart Antennas (WSA), 2010Adaptive relaying schemes significantly improve the performance of relay networks by switching the forwarding technique according to the reliability of the received signal. In adaptive relaying without ARQ all the relays forward irrespective of the decoding status at the destination. This leads to inefficient resource utilization. In ARQ relay networks,
Aimal Khan, Volker Kühn 0001
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ARQ Protocols and Unidirectional Codes
IEEE Transactions on Computers, 2006Forward error control (FEC) and automatic-repeat request (ARQ) is two main techniques used for reliable data transmission in computer and communication systems. In this paper, some simple, low cost error control techniques for ARQ protocols used with binary unidirectional channels are described.
M. ANANTHA, B. BOSE, TALLINI, Luca
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ARQ protocols for MIMO systems
Third International Conference on Communications and Networking, 2012In this paper, we evaluate the performance of Automatic Repeat reQuest (ARQ) protocols for MIMO (Multiple In Multiple Out) Systems using fixed and adaptive Modulation based on the instantaneous Signal to Noise Ratio (SNR). Transmit Antenna Selection (TAS) or/and Space Time Block Coding (STBC) are used.
Fatma Zouaidi +2 more
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ARQ for Interference Packet Networks
2018 IEEE International Symposium on Information Theory (ISIT), 2018In multi-user wireless packet networks interference is the throughput bottleneck. Users become aware of the interference pattern via feedback and use this information for contention resolution and for packet retransmission. We consider networks with spatially correlated wireless links, and we develop an opportunistic automatic repeat request function ...
Alireza Vahid, A. Robert Calderbank
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On the Performance of Selection Cooperation ARQ
2009 IEEE International Conference on Communications, 2009We extend current Automatic Repeat Request (ARQ) protocols by proposing a cross-layer communication system, which relies on selection cooperation at the physical layer. We argue that selection cooperation is a better alternative to Distributed Space-Time Block Coding (DTSBC) when coupled with non-cooperative ARQ protocols. The Selection Cooperation ARQ
Paul A. Anghel, Mostafa Kaveh
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Wireless Personal Communications, 2000
A hybrid ARQ in which the transmitter adaptively selects an FEC code according to the channel condition is presented and analyzed. The code is selected according to the past transmissions and acknowledgements by an algorithm which is a generalization of that in [1].
Samir Kallel +2 more
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A hybrid ARQ in which the transmitter adaptively selects an FEC code according to the channel condition is presented and analyzed. The code is selected according to the past transmissions and acknowledgements by an algorithm which is a generalization of that in [1].
Samir Kallel +2 more
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ARQ with Channel Gain Monitoring
IEEE Transactions on Communications, 2012Automatic repeat request (ARQ) schemes with cyclic redundancy check (CRC) codes are designed specifically for additive white Gaussian noise channels based on average performance measures. Average performance measures are known to be inadequate for high data rate wireless communication where the channel gain varies randomly in time, because they do not ...
Mingwei Wu 0001, Pooi Yuen Kam
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An ARQ scheme with packet combining
IEEE Communications Letters, 1998In an automatic repeat request (ARQ) scheme, a packet is retransmitted if it gets corrupted due to transmission errors caused by the channel. Here we describe a ready-to-implement ARQ scheme with packet combining. An analytical description of the scheme in random error channel shows excellent agreement with simulation results.
Shyam S. Chakraborty +2 more
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P-ARQ: Controllable PLL ARQ method for wireless low power communication
2013 IEEE 10th Consumer Communications and Networking Conference (CCNC), 2013To minimize the power consumption of a wireless radio module, a cross layer optimization is essential. The energy consumption behavior heavily depends on the wireless medium access control (MAC) protocol, which controls the activity and the operating mode of wireless radio modules. The largest proportion of power in wireless radio module is consumed in
Hyosun Hwang +4 more
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Sequential decoding with ARQ and code combining: a robust hybrid FEC/ARQ system
IEEE Transactions on Communications, 1988Sequential decoding with ARQ (automatic-repeat-request) and code combining under the timeout condition is considered. That is, whenever the decoding time of a given packet exceeds some predetermined duration, decoding is stopped and retransmission of the packet is requested.
Samir Kallel, David Haccoun
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