نتایج جستجو برای: code symbol

تعداد نتایج: 185842  

2011
Lau

fixed rate coding in terms of SNR and average throughput was obtained. In fact, the concept of variable rate adaptive In this paper, we propose a bandwidth efficient error corcoding and modulation has been widely applied in 3rd genrection scheme, namely the variable rate adaptive biteration TDMA systems like Enhanced Data rate for GSM interleaved trellis coded modulation (ABICM), for wireless E...

2009
Shao-Wei Yen Ming-Chih Hu Chin-Lung Chen Hsie-Chia Chang Shyh-Jye Jou Chen-Yi Lee

An area-efficient and fully-compliant decoder for convolutional turbo code (CTC) of WiMAX 802.16e is presented. The proposed decoder can support all 17 modes specified in IEEE 802.16e system. By scaling the extrinsic information, the Max-Log MAP algorithm is used to reduce the hardware complexity with the minimized performance loss. A two-phase extrinsic memory and reversed sliding window techn...

2004

fixed rate coding in terms of SNR and average throughput was obtained. In fact, the concept of variable rate adaptive In this paper, we propose a bandwidth efficient error corcoding and modulation has been widely applied in 3rd genrection scheme, namely the variable rate adaptive biteration TDMA systems like Enhanced Data rate for GSM interleaved trellis coded modulation (ABICM), for wireless E...

2002
E. M. Petriu

This paper presents a new absolute position measurement method using pseudo-random binary sequences. This encoding technique has the notable advantage of requiring only one code-symbol per quantization interval. This compact encoding method offers an economical solution to very-highresolution absolute position applications: shaft encoders, linear encoders, and "automated guided vehicle" (AGV) n...

2015
Wansu Lim

In this paper, a closed-form symbol error rate (SER) for space-time block code (STBC) in free space optic (FSO) systems is derived. Then the asymptotic performance analysis presents the insight values, the diversity order and the SNR gain. We show that the SNR gain worsens as the number of lasers and photo detectors increases.

2014
Hieu D. Nguyen Gregory E. Coxson

We generalize the construction of Doppler-tolerant Golay complementary waveforms by Pezeshki-CalderbankMoran-Howard to complementary code sets having more than two codes. This is accomplished by exploiting numbertheoretic results involving the sum-of-digits function, equal sums of like powers, and a generalization to more than two symbols of the classical two-symbol Prouhet-Thue-Morse sequence.

Journal: :CoRR 2014
Hieu D. Nguyen Greg E. Coxson

We generalize the construction of Doppler-tolerant Golay complementary waveforms by PezeshkiCalderbank-Moran-Howard to complementary code sets having more than two codes. This is accomplished by exploiting number-theoretic results involving the sum-of-digits function, equal sums of like powers, and a generalization to more than two symbols of the classical two-symbol Prouhet-Thue-Morse sequence.

2004
David W. Gillman Mojdeh Mohtashemi Ronald L. Rivest

We examine the problem of deciphering a file that has been Huffman coded, but not otherwise encrypted. We find that a Huffman code can be surprisingly difficult to cryptanalyze. We present a detailed analysis of the situation for a three-symbol source alphabet and present some results for general finite alphabets.

Journal: :Biopolymers 1987
C J Hough

8a. NAME OF FUNDING I SPONSORING 8b. OFFICE SYMBOL 9. PROCUREMENT INSTRUMENT IDENTIFICATION NUMBER ORGANIZATION Naval Medical (f applicable) [esearch and Development Command 8c. ADDRESS (City, State, and ZIP Code) 10. SOURCE OF FUNDING NUMBERS Bethesda, Maryland 20814-5055 PROGRAM PROJECT TASK WORK UNIT ELEMENT NO. I NO. NO. [CCESSION NO. 61153N MR041.20 b8B1203 N377032 1. TITLE (include Securi...

2017
Brian Dunn

A survey of programming-related documentation for LTEX. Included are references to printed and electronic books and manuals, symbol lists, FAQs, the LTEX source code, CTAN and distributions, programming-related packages, users groups and online communities, and information on creating packages and documentation.

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