Results 61 to 70 of about 1,531,654 (151)

A Hybrid Single-Carrier/Multicarrier Transmission Scheme with Power Allocation

EURASIP Journal on Wireless Communications and Networking, 2007
We propose a flexible transmission scheme which easily allows to switch between cyclic-prefixed single-carrier (CP-SC) and cyclic-prefixed multicarrier (CP-MC) transmissions. This scheme takes advantage of the best characteristic of each scheme, namely,
Luc Féty, Michel Terré, Danilo Zanatta Filho   +2 more
doaj   +1 more source

A Study on Wireless Waveform Modification Architectures Most Applicable for Seamless Data Transmission in 5G NR Frequencies

ABUAD Journal of Engineering Research and Development
Several studies have been conducted on the successive modification of the wireless network waveform resources for advanced purposes. This is to adapt to the evolving needs of wireless resources in areas such as growing data rates, effective bandwidth ...
Zakka Augustine, Mohammed Abdulkadir Giwa, Samson Isaac, Opeyemi Olajumoke ADEKOGBA, Thomas Lass Barna, Jocknom Jock Kotty   +5 more
doaj   +1 more source

Spreading Code Design for a MC-CDMA Based GNSS Pilot Signal [PDF]

, 2010
MC-CDMA can represent an alternative to classical DS-CDMA for the design of GNSS ranging signals. A first requirement MC-CDMA signals must fulfill is that their generation on a satellite payload be feasible.
Meurer, Michael, Seco-Granados, Gonzalo, Vergara, Mariano, Felix Antreich, Gonzalo Seco-Granados, Antreich, Felix, Mariano Vergara, Michael Meurer   +7 more
core   +1 more source

Filter Bank Multicarrier Communication With Real Part and Imaginary Part Index Modulation

IEEE Open Journal of the Communications Society
This paper presents a novel variant of filter bank multicarrier (FBMC) communication, which carries additional bits through mapping the real and imaginary parts of the symbol to the active time-frequency (TF) points, called FBMC with real part and ...
Yunan Zhu, Haining Huang, Zhanqing Pu, Biao Wang, Yu Li   +4 more
doaj   +1 more source

CDMA Transmission with Complex OFDM/OQAM

EURASIP Journal on Wireless Communications and Networking, 2007
We propose an alternative to the well-known multicarrier code-division multiple access (MC-CDMA) technique for downlink transmission by replacing the conventional cyclic-prefix orthogonal frequency division multiplexing (OFDM) modulation by an advanced ...
Chrislin Lélé, Pierre Siohan, Rodolphe Legouable, Maurice Bellanger   +3 more
doaj   +1 more source

Multi-Objective Convex-Optimization Model for Peak-Power Regularization in Superposition-Coded Multicarrier Systems with Fifth Generation Constraints

Engineered Science
This paper develops a multi-objective convex-optimization model for peak-power regularization in superposition-coded multicarrier signals motivated by fifth generation (5G) downlink constraints.
Jyoti A. Dhanke, CH. Mohan Sai Kumar, P. M. Siva Raja, Lakshmana Phaneendra Maguluri, Muzeeb Khan Patan, Prashanta Chandra Pradhan, Aziz Nanthaamornphong   +6 more
doaj   +1 more source

Coherent and Differential Downlink Space-Time Steering Aided Generalised Multicarrier DS-CDMA

, 2007
This paper presents a generalised MultiCarrier Direct Sequence Code Division Multiple Access (MC DS-CDMA) system invoking smart antennas for improving the achievable performance in the downlink.
El-Hajjar, Mohammed, Hu, B, Yang, L-L, Hanzo, L   +3 more
core   +1 more source

Multicarrier Downlink Transmission for High-speed Railway in Non-Gaussian Noise Channels

IEEE Access, 2018
We consider a wireless wideband downlink transmission for high-speed railway. In this scenario, the wireless channel is double selective, i.e., multipath and highly time-varying, and involves non-Gaussian noise at the receiver side. Conventional receiver
Qiwei Zheng, Fanggang Wang, Bo Ai, Zhangdui Zhong   +3 more
doaj   +1 more source

Subcarrier Gain Based Power Allocation in Multicarrier Systems

Journal of Telecommunications and Information Technology, 2014
The Orthogonal Frequency Division Multiplexing (OFDM) transmission is the optimum version of the multicarrier transmission scheme, which has the capability to achieve high data rate.
Mohammed Abd-Elnaby, Germien G. Sedhom, Fathi E. Abd El-Samie, Nagy Wadie Messiha, Xu Zhu   +4 more
doaj   +1 more source

Slow Frequency-Hopping Multicarrier DS-CDMA for Transmission over Nakagami Multipath Fading Channels

, 2001
A novel multiple access scheme based on slow frequency hopping multicarrier direct-sequence code division multiple access (SFH/MC DS-CDMA) is proposed and investigated, which can be rendered compatible with the existing second-generation narrowband CDMA ...
Yang, L-L., Hanzo, L.
core   +1 more source