Results 71 to 80 of about 62,799 (214)

Reconfigurable Viterbi decoder on mesh connected multiprocessor architecture

, 2008
In modern wireline and wireless communication systems, Viterbi decoder is one of the most compute intensive and essential elements. Each standard requires a different configuration of Viterbi decoder.
Nandy, SK, Rajore, Ritesh, Garga, Ganesh, Jamadagni, HS   +3 more
core  

Design and implementation of a 2-bit add-compare-select unit in quantum-dot cellular automata [PDF]

EPJ Web of Conferences
QCA (Quantum Dot Cellular Automata) emerged as potential replacements for CMOS technology in the field of ultralow-power high-density digital circuits.
Kumar C. Naveen Saravan, N V Srinivas, E Prabhu   +2 more
doaj   +1 more source

Ringed Seal (Pusa hispida) Haul‐Out Behavior and Emergence Timing in the Bering, Chukchi, and Beaufort Seas

Ecology and Evolution, Volume 16, Issue 1, January 2026.
In the spring, ringed seals (Pusa hispida) shift from predominantly hauling out in lairs to predominantly hauling out on the surface of the sea ice to bask and molt, a transition we refer to as “emergence.” We used hidden Markov models (HMMs) to analyze haul‐out timelines from satellite‐linked transmitters to estimate emergence dates of ringed seals ...
Jessica M. Lindsay, Paul B. Conn, Peter L. Boveng, Justin A. Crawford, Lori T. Quakenbush, Andrew L. Von Duyke, Kristin L. Laidre   +6 more
wiley   +1 more source

Serial Concatenated Codes Based on Iterative and Non-Iterative Decoding

Journal of Engineering and Sustainable Development, 2006
This paper gives the design and implementation of iterative and non-iterative decoders of serially concatenated block and convolutional coding schemes.
Maha George Zia, Samir A bd Al-Cathem Khother   +1 more
doaj  

Data detection algorithms for perpendicular magnetic recording in the presence of strong media noise [PDF]

As the throughput and density requirements increase for perpendicular magnetic recording channels, the presence of strong media noise degrades performance.
Jackson, Robert Charles
core  

Comparison between Modified Bahl, Cocke, Jelinek, and Raviv (BCJR) and Soft Output Viterbi Algorithm (SOVA) Decoders Over Additive White Gaussian Noise (AWGN) Channel

Journal of Engineering and Sustainable Development, 2007
urbo codes are suitable for deep-space communications, because of the codes astonishing performance at low values of signal to noise ratio (SNR) and their ability to achieve near Shannon limit of channel capacity.
Maha George Zia, Khaleel Abdul Khader Saleh   +1 more
doaj  

Modeling of ADS-B data transmission via satellite

Aviation, 2013
For modelling transmission of ADS-B messages via low-orbit satellite constellation Iridium, the original model of a communication channel “Aircraft-to-Satellite-to-Ground Station” was built using MATLAB Simulink.
Volodymyr Kharchenko, Yuri Barabanov, Andrii Grekhov   +2 more
doaj   +1 more source

Power consumption optimization technique in ACS for space time trellis code viterbi decoder [PDF]

, 2015
To provide fast digital communications systems, energy efficient, high-performance, low power is critical for decoding mobile receiver device. This paper proposes a low power optimization techniques in the Add Compare Select (ACS) unit for Space Time ...
Harmin, Mohammad Yazdi, Abu, Mohd Azlan, Harun, Harlisya, Abdul Wahab, Noor Izzri   +3 more
core   +1 more source

High throughput viterbi decoder

, 2010
碩士此篇論文主要在陳述一種新的維特比解碼器的架構，目的在提高原有IS-95, IS-2000, 8021.x 的傳輸率。因原本既有的標準，都是使用較高的輸入頻率來達成標準內的傳輸率，或者使用較低的輸入頻率，再用內部的PLL，提供出較高的觸發頻率給內部的維特比解碼器來達成。但是在新的802.11x標準內，已將輸入觸發頻率與傳輸率，幾乎相等，如802.11a/b/g或將出爐的802.11、802.16a。但這些標準都必須使用到維特比解碼器。為了這些標準，此篇論文提供一種新的架構，不需要PLL ...
李後璋; Lee, Ho-chang
core   +1 more source

Coded Modulation Assisted Iterative Parallel Interference Cancellation Aided CDMA

, 2003
In this contribution we investigate Trellis Coded Modulation (TCM) and Turbo Trellis Coded Modulation (TTCM) assisted iterative parallel interference cancellation aided CDMA schemes.
Ng, S.X., Hua, Wei, Hanzo, L.
core   +1 more source