scholarly journals TURBO Coded OFDM Improves BER Performance Evaluation for Digital Video Broadcasting

2021 ◽  
Vol 9 (9) ◽  
pp. 1950-1954
Author(s):  
R. Meghana Yadav
Keyword(s):  
Wireless Communication ◽  
Mobile Communications ◽  
Orthogonal Frequency Division Multiplexing ◽  
High Speed ◽  
Digital Video ◽  
Data Rate ◽  
High Data Rate ◽  
Digital Video Broadcasting ◽  
Video Broadcasting ◽  
High Data

Abstract: Turbo coded Orthogonal Frequency Division Multiplexing (OFDM) is attractive technique for high data rate in wireless communication applications, mobile communications (4G) and Wireless Metropolitan Area Networks (WMAN) and Digital Video Broadcasting (DVB). The performance of TURBO Coded 16 QAM and 64 QAM schemes with OFDM for high speed data rate applications is compared which is used in digital video broadcasting. BER analysis is used to assess the system's performance. Due to the high data rate of 64 QAM, attaining BER of ૚૙ି૝ requires Eb/No of 0.9 dB in 16QAM, whereas obtaining BER of ૚૙ି૝ requires 0.17 dB in 64QAM. By using OFDM removes Inter Symbol Interference (ISI) and Adjacent Channel Interference (ACI). Keywords: Wireless communication, mobile communication, OFDM, QAM, TURBO Encoding

scholarly journals Integrated approach for efficient power consumption and resource allocation in MIMO-OFDMA

2020 ◽  
Vol 10 (2) ◽  
pp. 2069
Author(s):  
Archana B. ◽  
T. P. Surekha
Keyword(s):  
Resource Allocation ◽  
Performance Analysis ◽  
Wireless Communication ◽  
Power Consumption ◽  
Data Rate ◽  
High Data Rate ◽  
Smart Devices ◽  
Ofdma System ◽  
High Data ◽  
Redundant Data

The growing interest towards wireless communication advancement with smart devices has provided the desired throughput of wireless communication mechanisms. But, attaining high-speed data packets amenities is the biggest issue in different multimedia applications. Recently, OFDM has come up with the useful features for wireless communication however it faces interference issues at carrier level (intercarrier interferences). To resolve these interference issues in OFDM, various existing mechanisms were utilized cyclic prefix, but it leads to redundancy in transmitted data. Also, the transmission of this redundant data can take some more power and bandwidth. All these limitations factors can be removed from a parallel cancellation mechanism. The integration of parallel cancellation and Convolution Viterbi encoding and decoding in MIMO-OFDMA will be an effective solution to have high data rate which also associations with the benefits of both the architectures of MIMO and OFDMA modulation approaches. This paper deals with this integrated mechanism for efficient resource allocation and power consumption. For performance analysis, MIMO-OFDMA system is analyzed with three different approaches likeMIMO-OFDM system without parallel cancellation (MIMO-OFDMA-WPC), MIMO-OFDMA System with parallel cancellation (MIMO-OFDMA-PC) and proposed IMO-OFDMA system with parallel cancellation and Convolution Viterbi encoding/decoding (pMIMO-OFDMA-PC &CVed) for 4x4 transmitter and receiver. Through performance analysis, it is found that the proposed system achieved better resource allocation (bandwidth) with high data rate by minimized BER rate and achieved least power consumption with least BER.

Appraisal of OFDM for multi-carrier, high-speed data rate wireless communication networks

2019 ◽  
Author(s):  
Muhammad Bello Abdullahi
Keyword(s):  
Wireless Communication ◽  
Communication Networks ◽  
Orthogonal Frequency Division Multiplexing ◽  
High Speed ◽  
Research Work ◽  
Wireless Systems ◽  
Data Rate ◽  
High Quality Research ◽  
Global Issues ◽  
High Speed Data

Orthogonal Frequency Division Multiplexing (OFDM) is used to achieve multi-carrier signals and high- Speed data rate in free space. OFDM-based systems operate in the hostile multipath radio environment, which allows efficient sharing of limited resources. This research work was designed, developed and simulated an OFDM System using the basic blocks of Simulink in MATLAB/Simulink software, to support multi-carrier, high-speed data rates. This was achieved in backing of collection and review of high-quality research papers, which reported the latest research developments in OFDM communications networks, and its applications in future wireless systems. The research work significantly increases the speed of data rate signals, and many critical problems associated with the applications of OFDM technologies in future wireless systems are still looking for efficient solutions. This would overcome the global issues and challenges facing the limited bandwidth in wireless communication network.

High Data-Rate Phase-Change Media for the Digital Video Recording System

2000 ◽  
Vol 39 (Part 1, No. 2B) ◽  
pp. 762-765 ◽  
Author(s):  
Benno Tieke ◽  
Martijn Dekker ◽  
Nicola Pfeffer ◽  
Roel van Woudenberg ◽  
Guo-Fu Zhou ◽  
...  
Keyword(s):  
Phase Change ◽  
Digital Video ◽  
Video Recording ◽  
Data Rate ◽  
Recording System ◽  
High Data Rate ◽  
High Data

scholarly journals Proactive Forwarding of High Data Rate in Smart Virtualization Networks for High-Speed Trains

2020 ◽  
Vol 14 (2) ◽  
pp. 1670-1681
Author(s):  
Fouad Ali Yaseen ◽  
Hamed S. Al-Raweshidy
Keyword(s):  
High Speed ◽  
Data Rate ◽  
High Data Rate ◽  
High Data ◽  
High Speed Trains
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