Results 21 to 30 of about 5,452 (173)

On the variable capacity property of CC/DS-CDMA systems [PDF]

open access: yes, 2006
A complete complementary code based direct sequence code division multiple access (CC/DS-CDMA) system has been proposed recently as a potential candidate for beyond third generation (B3G) wireless communications.
Chen, HH, Song, YH, Wang, LP, Yang, Y
core   +1 more source

Investigating the relation between optimum guard interval and channel delay spread for a MC-CDMA system [PDF]

open access: yes, 2012
This paper demonstrates a novel approach to determining the optimum guard interval for a multicarrier code division multiple access (MC-CDMA) system. Analytical expressions for useful and interference power are derived as a basis for comparison.
Gokalp, H, Kurnaz, C
core   +1 more source

Statistical Modeling of Bit-Error-Rates in Asynchronous Multicarrier CDMA and Direct-Sequence CDMA Systems [PDF]

open access: yes, 2004
This paper presents a method for modeling the bit-error-rate (BER) probability density functions (pdf) of asynchronous Multicarrier Code Division Multiple Access (MC-CDMA) and Direct-Sequence Code Division Multiple Access (DS-CDMA) systems.
Carey, Daniel   +2 more
core   +2 more sources

Research on synchronisation for burst and instantaneous communication in integrated radar and communication

open access: yesThe Journal of Engineering, Volume 2019, Issue 21, Page 7966-7972, November 2019., 2019
Integration of radar and communication (Radcom) is one of the important research areas for multi‐functional integrated radio frequency systems. Most attention has been drawn to the Radcom system based on signal‐sharing, due to its high integration degree.
Xiao‐Bai Li   +3 more
wiley   +1 more source

Near-Instantaneously Adaptive HSDPA-Style OFDM Versus MC-CDMA Transceivers for WIFI, WIMAX, and Next-Generation Cellular Systems

open access: yes, 2007
Burts-by-burst (BbB) adaptive high-speed downlink packet access (HSDPA) style multicarrier systems are reviewed, identifying their most critical design aspects.
Choi, B.J., Hanzo, Lajos
core   +1 more source

Personal area technologies for internetworked services [PDF]

open access: yes, 2004
This article reviews wireless enabling technologies to support interworking of heterogeneous networks, and covers two relevant topics; personal area networks and multistandard terminals.
Beach, MA   +9 more
core   +2 more sources

OSPG‐MAC: An OFDMA‐Based Subcarrier Pregrouping MAC Protocol for Underwater Acoustic Wireless Sensor Networks

open access: yesJournal of Sensors, Volume 2019, Issue 1, 2019., 2019
In underwater acoustic wireless sensor networks (UAWSNs), designing media access control (MAC) protocols is highly challenging because of their significant influence on network performance. It is a great challenge to design suitable MAC protocols for UAWSNs because of the specific characteristics of underwater acoustic channels, such as low ...
Yishan Su   +4 more
wiley   +1 more source

Iterative Intercell Interference Cancellation in MIMO Multicell Networks

open access: yesWireless Communications and Mobile Computing, Volume 2018, Issue 1, 2018., 2018
An iterative intercell interference cancellation algorithm is introduced to improve the receiver performance of uplink transmission in multicell networks. At first, the uplink signal detection is performed independently in each cell according to minimum mean squared error (MMSE) criterion.
Zhengzhen Zhang   +3 more
wiley   +1 more source

Uplink Nonorthogonal Multiple Access Technologies Toward 5G: A Survey

open access: yesWireless Communications and Mobile Computing, Volume 2018, Issue 1, 2018., 2018
Owing to the superior performance in spectral efficiency, connectivity, and flexibility, nonorthogonal multiple access (NOMA) is recognized as the promising access protocol and is now undergoing the standardization process in 5G. Specifically, dozens of NOMA schemes have been proposed and discussed as the candidate multiple access technologies for the ...
Neng Ye   +4 more
wiley   +1 more source

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