Results 81 to 90 of about 2,319 (194)
Design and Analysis of LT Codes with Decreasing Ripple Size
, 2012 In this paper we propose a new design of LT codes, which decreases the amount of necessary overhead in comparison to existing designs. The design focuses on a parameter of the LT decoding process called the ripple size.
Popovski, Petar +2 more
core +2 more sources
International Journal of Antennas and Propagation, 2013 Free Space Optics (FSO) links are affected by several impairments: optical turbulence, scattering, absorption, and pointing. In particular, atmospheric optical turbulence generates optical power fluctuations at the receiver that can degrade ...
A. Andò +6 more
doaj +1 more source
Near-Capacity Adaptive Analog Fountain Codes for Wireless Channels
, 2013 In this paper, we propose a capacity-approaching analog fountain code (AFC) for wireless channels. In AFC, the number of generated coded symbols is potentially limitless.
Li, Yonghui +2 more
core +1 more source
A Rateless Code Transmission Strategy Based on Real Time Service
Dianxin kexue, 2013 Rateless codes has the advantage of good channel adaptivity with a low amount of feedback data.However,the data transmission delay caused by its own coding characteristics and its sensitivity of the feedback link quality directly affects its application ...
Shaohua Zhao +4 more
doaj +2 more sources
Rateless-Coding-Assisted Multi-Packet Spreading over Mobile Networks
, 2014 A novel Rateless-coding-assisted Multi-Packet Relaying (RMPR) protocol is proposed for large-size data spreading in mobile wireless networks. With this lightweight and robust protocol, the packet redundancy is reduced by a factor of $\sqrt n$, while the ...
Dai, Huaiyu +2 more
core +1 more source
Efficient Symbol Sorting for High Intermediate Recovery Rate of LT Codes
, 2010 LT codes are modern and efficient rateless forward error correction (FEC) codes with close to channel capacity performance. Nevertheless, in intermediate range where the number of received encoded symbols is less than the number of source symbols, LT ...
Rahnavard, Nazanin +2 more
core +1 more source
Scheduling of Multicast and Unicast Services under Limited Feedback by using Rateless Codes
, 2014 Many opportunistic scheduling techniques are impractical because they require accurate channel state information (CSI) at the transmitter. In this paper, we investigate the scheduling of unicast and multicast services in a downlink network with a very ...
Kim, Kyu-Han +3 more
core +1 more source
Rateless coding for MIMO block fading channels
2008 IEEE International Symposium on Information Theory, 2008 Proceedings of the 2008 IEEE International Symposium on Information Theory, Toronto, ON, Canada, July 6 - 11 ...
Fan, Yijia +3 more
openaire +2 more sources
IEEE AccessThe complex environments of Measurement-While-Drilling (MWD), characterized by intense vibrations and high temperatures, can lead to random attenuation of optical intensity, phase mismatch, and signal distortion, thereby reducing the signal-to-noise ...
Xiaoyang Yu +3 more
doaj +1 more source
Adaptive Demodulation in Differentially Coherent Phase Systems: Design and Performance Analysis
, 2010 Adaptive Demodulation (ADM) is a newly proposed rate-adaptive system which operates without requiring Channel State Information (CSI) at the transmitter (unlike adaptive modulation) by using adaptive decision region boundaries at the receiver and ...
Abouei, Jamshid +3 more
core +1 more source