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OFDMA Architectures, Protocols, and Applications

  1. A fast linear minimum mean square error (LMMSE) channel estimation method has been proposed for Orthogonal Frequency Division Multiplexing (OFDM) systems. In comparison with the conventional LMMSE channel esti...

    Authors: Wen Zhou and Wong Hing Lam

    Citation: EURASIP Journal on Wireless Communications and Networking 2009 2009:752895

    Content type: Research Article

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  2. In the Long Term Evolution (LTE) of UMTS the Interactive Mobile TV scenario is expected to be a popular service. By using multiresolution with hierarchical modulations this service is expected to be broadcaste...

    Authors: Américo Correia, Nuno Souto, Armando Soares, Rui Dinis and João Silva

    Citation: EURASIP Journal on Wireless Communications and Networking 2009 2009:240140

    Content type: Research Article

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  3. The orthogonal frequency division multiple access (OFDMA) scheme has been selected as a potential candidate for many emerging broadband wireless access standards. In this paper, a new joint scheduling and reso...

    Authors: I Gutiérrez, F. Bader, R. Aquilué and J. L. Pijoan

    Citation: EURASIP Journal on Wireless Communications and Networking 2009 2009:134579

    Content type: Research Article

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  4. We propose an RNS arithmetic-based FH pattern design approach that is well suited and easy to implement for practical OFDMA systems. The proposed FH scheme guarantees orthogonality among intracell users while ...

    Authors: Dalin Zhu and Balasubramaniam Natarajan

    Citation: EURASIP Journal on Wireless Communications and Networking 2009 2009:263695

    Content type: Research Article

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  5. We present an implementation of a mobile-WiMAX (m-WiMAX) base station (BS) that supports smart antenna (SA) functionality. To implement the m-WiMAX SA BS, we must address a number of key issues in baseband sig...

    Authors: Seungheon Hyeon, Changhoon Lee, Chang-eui Shin and Seungwon Choi

    Citation: EURASIP Journal on Wireless Communications and Networking 2009 2009:950674

    Content type: Research Article

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  6. We address the problem of superimposed trainings- (STs-) based linearly time-varying (LTV) channel estimation and symbol detection for orthogonal frequency-division multiplexing access (OFDMA) systems at the u...

    Authors: Han Zhang, Xianhua Dai, Dong Li and Sheng Ye

    Citation: EURASIP Journal on Wireless Communications and Networking 2009 2009:307375

    Content type: Research Article

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  7. Multiuser resource allocation for time/frequency slotted wireless communication systems is addressed. A framework for application driven cross-layer optimization (CLO) between the application (APP) layer and m...

    Authors: Andreas Saul and Gunther Auer

    Citation: EURASIP Journal on Wireless Communications and Networking 2009 2009:341689

    Content type: Research Article

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  8. Quadrature orthogonal frequency division multiple access (Q-OFDMA) systems have been recently proposed to reduce the peak-to-average power ratio (PAPR) and complexity, and improve carrier frequency offset (CFO...

    Authors: Lin Luo, Jian(Andrew) Zhang and Zhenning Shi

    Citation: EURASIP Journal on Wireless Communications and Networking 2009 2009:953018

    Content type: Research Article

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  9. Existing medium access control (MAC) schemes for wireless local area networks (WLANs) have been shown to lack scalability in crowded networks and can suffer from widely varying delays rendering them unsuited t...

    Authors: H.M. Alnuweiri, Y. Pourmohammadi Fallah, P. Nasiopoulos and S. Khan

    Citation: EURASIP Journal on Wireless Communications and Networking 2009 2009:512865

    Content type: Research Article

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  10. We propose a novel cross layer scheme to reduce the power consumption of ADCs in OFDM systems. The ADCs in a receiver can consume up to 50% of the total baseband energy. Our scheme is based on resolution-adapt...

    Authors: Xiaoying Shao, Roel Schiphorst and Cornelis H Slump

    Citation: EURASIP Journal on Wireless Communications and Networking 2009 2009:750735

    Content type: Research Article

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  11. This paper discusses the application of adaptive modulation and adaptive rate turbo coding to orthogonal frequency-division multiplexing (OFDM), to increase throughput on the time and frequency selective chann...

    Authors: Lei Ye and Alister Burr

    Citation: EURASIP Journal on Wireless Communications and Networking 2009 2009:609386

    Content type: Research Article

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  12. A novel partial frequency response channel estimator is proposed for OFDMA systems. First, the partial frequency response is obtained by least square (LS) method. The conventional discrete Fourier transform (D...

    Authors: Yi Wang, Lihua Li, Ping Zhang and Zemin Liu

    Citation: EURASIP Journal on Wireless Communications and Networking 2009 2009:647130

    Content type: Research Article

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  13. In mobile worldwide interoperability for microwave access (WiMAX) or 3rd Generation partnership project long-term evolution (3GPP-LTE), uplink virtual multiple input multiple output (MIMO) technology is adopte...

    Authors: Sanhae Kim, Oh-Soon Shin and Yoan Shin

    Citation: EURASIP Journal on Wireless Communications and Networking 2009 2009:307407

    Content type: Research Article

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  14. IEEE 802.16 network is widely viewed as a strong candidate solution for broadband wireless access systems. Various flexible mechanisms related to QoS provisioning have been specified for uplink traffic at the ...

    Authors: Yi Zhou, Kai Chen, Jianhua He, Haibin Guan, Yan Zhang and Alei Liang

    Citation: EURASIP Journal on Wireless Communications and Networking 2009 2009:635304

    Content type: Research Article

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  15. The problem of multiservice transmission in OFDMA-based cooperative relay networks is studied comprehensively. We propose a framework to adaptively allocate power, subcarriers, and data rate in OFDMA system to...

    Authors: Xing Zhang, Shuping Chen and Wenbo Wang

    Citation: EURASIP Journal on Wireless Communications and Networking 2008 2009:940518

    Content type: Research Article

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