Improved Detection of Uplink OFDM-IDMA Signals with Carrier Frequency Offsets

Peng, Tao; Xiao, Yao; He, Xu; Li, Shaoqian

doi:10.1109/lcomm.2012.030512.112496

Cited by 26 publications

(14 citation statements)

References 10 publications

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“…A Least Mean Square (LMS) created versatile synchronization algorithm is applied to deal with CFO errors. Authors presumed that expansion in mobile speed debases the BER of the framework.Authors [8] have investigated and assessed the influence of CFO on the execution of OFDM IDMA scheme utilizing LMS based versatile rectification algorithm in a moderate just as quick fading multipath channel.Detection technique which alleviates the influence of CFOs in uplink OFDM-IDMA systems has presented in [9]. The iterative estimation discarded the joined obstruction from various users and CFOs at the recipient.…”

Section: Literature Reviewmentioning

confidence: 99%

Performance Enhancement of Bit Error Rate with Increased Capacity using Modified SIC-MUD for Polar Code based OFDM-IDMA System for 5G

2019

IJITEE

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 Abstract: In the era of mobile data revolution there is a mass-market of smart phones culminating into an extensive growth in mobile services and applications. However, bandwidth is limited and valuable resource available. In this paper hybrid combination of OFDM-IDMA system is proposed using polar code as forward error correction code and Gold code based interleaver. It presents a method to improvebit error rate with 10 users and normalizedcarrier frequency offsets of 0.1 to 0.5.The simulation is done in the presence of Rayleigh and AWGN channel with 64 QAM modulation technique. A modified successive interference cancellation multi-user detection algorithm is proposed to cater multiple access interference.It is observed that proposed system withnormalized CFO of 0.1 for10 users at required SNR of 15 dB enhances the bit error rate to 1.021*10-4over available existing systems. Hence the capacity of the system and data rate increases by three times to support multimedia application within available bandwidth.

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Section: Literature Reviewmentioning

confidence: 99%

Performance Enhancement of Bit Error Rate with Increased Capacity using Modified SIC-MUD for Polar Code based OFDM-IDMA System for 5G

2019

IJITEE

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“…The research to achieve timing and carrier synchronization in OFDMA uplink communication systems is summarized in Table XIII. All categorized papers study carrier synchronization only [305,307,308,309,310,311,312,313,314,315,316,324,325,326,327,328,329,330,331,332,333,334,335,336,337,338,339]. Though they consider the same channel model, they differ in respect of providing joint channel estimation, requiring pilot/training, proposing estimation or compensation of multiple CFO, or providing lower bound.…”

Section: B Ofdma Uplink Communication Systemsmentioning

confidence: 99%

Timing and carrier synchronization in wireless communication systems: a survey and classification of research in the last 5 years

Nasir

Durrani

Mehrpouyan

et al. 2016

J Wireless Com Network

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Timing and carrier synchronization is a fundamental requirement for any wireless communication system to work properly. Timing synchronization is the process by which a receiver node determines the correct instants of time at which to sample the incoming signal. Carrier synchronization is the process by which a receiver adapts the frequency and phase of its local carrier oscillator with those of the received signal. In this paper, we survey the literature over the last 5 years (2010)(2011)(2012)(2013)(2014) and present a comprehensive literature review and classification of the recent research progress in achieving timing and carrier synchronization in single-input single-output (SISO), multiple-input multiple-output (MIMO), cooperative relaying, and multiuser/multicell interference networks. Considering both single-carrier and multi-carrier communication systems, we survey and categorize the timing and carrier synchronization techniques proposed for the different communication systems focusing on the system model assumptions for synchronization, the synchronization challenges, and the state-of-the-art synchronization solutions and their limitations. Finally, we envision some future research directions.

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“…Deterministic interleaver based on prime number algorithm has low memory requirement, low bandwidth, and better speed, less hardware requirement [5]. An improved detection scheme which mitigates the influence of CFOs in uplink OFDM-IDMA systems [8] is discussed. The basic principle is to iteratively estimate and cancel the combined interference from multiple users and CFOs at the receiver so that the additional interference due to the residual CFOs from other users can be suppressed.…”

Section: System Descriptionmentioning

confidence: 99%

Comparative study of Multiuser Detection techniques in OFDM-IDMA systems

Marne

Mukherji²

2015

2015 International Conference on Pervasive Computing (ICPC)

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Orthogonal Frequency Division Multiplexing and Interleaved Division Multiple Access is a hybrid communication system. This system has been receiving significant research attention due to their ability to address the problems like Inter symbol Interference and the Multiple Access Interference. This method is most widely used in various fourth generation wireless communication systems. In this paper, we present a comprehensive survey on OFDM-IDMA for wireless communications. Basics of OFDM-IDMA and techniques to improve the performance of OFDM-IDMA system are addressed here. Research and development are taking place all over the world to improve BER performance in OFDM-IDMA receiver by developing the effective Multiuser Detection algorithm. The Monte Carlo simulation method to measure the BER of the OFDM-IDMA system is proposed in this paper.

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Improved Detection of Uplink OFDM-IDMA Signals with Carrier Frequency Offsets

Cited by 26 publications

References 10 publications

Performance Enhancement of Bit Error Rate with Increased Capacity using Modified SIC-MUD for Polar Code based OFDM-IDMA System for 5G

Performance Enhancement of Bit Error Rate with Increased Capacity using Modified SIC-MUD for Polar Code based OFDM-IDMA System for 5G

Timing and carrier synchronization in wireless communication systems: a survey and classification of research in the last 5 years

Comparative study of Multiuser Detection techniques in OFDM-IDMA systems

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