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Average Likelihood Methods for Code Division Multiple Access (CDMA)
2014Abstract : This final report summarizes the most significant findings of the work done under the in-house effort titled Optimal Methods for Modulation Classification on average likelihood methods. The development began with the exact calculation of the likelihood function using symbolic algebra software.
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Conference Proceedings LEOS'96 9th Annual Meeting IEEE Lasers and Electro-Optics Society, 1996
Summary form only given. Wavelength division multiplex (WDM) system concepts, with WDM transceivers and associated guided wave devices based on the wavelength band around 1550 nm, are important ingredients of emerging telecommunication (telecom) and data communication (datacom) systems.
A.J. Mendez, R.M. Gagliardi
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Summary form only given. Wavelength division multiplex (WDM) system concepts, with WDM transceivers and associated guided wave devices based on the wavelength band around 1550 nm, are important ingredients of emerging telecommunication (telecom) and data communication (datacom) systems.
A.J. Mendez, R.M. Gagliardi
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2005 Student Conference on Engineering Sciences and Technology, 2005
Multiuser detection is central to the fulfillment of the capabilities of code-division multiple access (CDMA), which is becoming the ubiquitous air-interface in future generation communication systems. In DS-CDMA communications, all user signals overlap in time and frequency and cause mutual interference.
Muhammad Zahid Khan +1 more
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Multiuser detection is central to the fulfillment of the capabilities of code-division multiple access (CDMA), which is becoming the ubiquitous air-interface in future generation communication systems. In DS-CDMA communications, all user signals overlap in time and frequency and cause mutual interference.
Muhammad Zahid Khan +1 more
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IEEE 43rd Vehicular Technology Conference, 2002
The performance of a code division multiple access (CDMA) spreading ALOHA access protocol, which could be applied to cellular digital network and personal communications services, is investigated. Exact analysis for such a system access protocol is extremely difficult.
Z. Zhang, Y.-J. Liu
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The performance of a code division multiple access (CDMA) spreading ALOHA access protocol, which could be applied to cellular digital network and personal communications services, is investigated. Exact analysis for such a system access protocol is extremely difficult.
Z. Zhang, Y.-J. Liu
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Quasi‐synchronous code division multiple access (CDMA) with binary shift‐register sequences
Electronics and Communications in Japan (Part III: Fundamental Electronic Science), 1996AbstractThis paper discusses the quasi‐synchronous code‐division multiple access system (QS‐CDMA), where the time error in the synchronized access is allowed for a certain range, based on the spread‐spectrum communication technique. the Gold sequence and the M sequence, which are the binary shift‐register sequences, are used to derive the set of quasi ...
Seiji Kuno +3 more
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A multichannel short range bidirectional infrared link with code division multiple access (CDMA)
IEEE Transactions on Consumer Electronics, 1998In this paper, we present an infrared transmission system meant for indoor applications. It is based on CDMA technology and therefore it is highly resistant to environmental interference such as fluorescent light. A very simple synchronization scheme is employed based on a slight detuning of quartz oscillators in the terminals and central station.
K. Holejko +3 more
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Performance of code division multiple access (CDMA) systems in Nakagami multipath fading channel
Proceedings of the Eighteenth National Radio Science Conference. NRSC'2001 (IEEE Cat. No.01EX462), 2002Multicarrier CDMA system is characterized by a simpler receiver structure than the conventional RAKE receiver. Most of previous studies evaluated the performance of the MC-CDMA system in a Rayleigh multipath fading channel. This paper compares the performance of a RAKE receiver and MC-CDMA system in a Nakagami multipath fading.
S.M. Elnoubi, A.A. Hashem
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Average Likelihood Methods of Classification of Code Division Multiple Access (CDMA)
2016Abstract : This final report summarizes the most significant findings under the in-house effort titled Average Likelihood For CDMA.The effort included refinements to the proposed average likelihood method discussed in AFRL-RI-RS-TR-2014-09-093.The refinements include a Taylors approximation of the log-likelihood function the development of algorithms ...
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Neural matched filter detection in synchronous code-division multiple-access (CDMA) systems
Thirteenth National Radio Science Conference. NRSC '96, 2002In communication networks employing spread-spectrum (SS) code-division multiple-access (CDMA), the performance of single user matched filter receivers are highly degraded when the relative powers of the interfering signals are large (the near-far problem).
S.E. El-Khamy, H.-E.-D.M. Abdou
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PERFORMANCE ANALYSIS OF A SLOTTED CODE DIVISION MULTIPLE ACCESS (CDMA) NETWORK.
2012A performance model of a multihop code-division multiple access (CDMA) spread-spectrum network is presented. Time is divided into slots, and the network nodes are synchronized such that fixed-length messages will only be sent at the beginning of slots. The message-generation processes at the nodes are assumed to be independent Bernoulli processes.
Li, Victor OK, Su, SzuLin
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