On Power-Loading Algorithms for Packet-Access OFDM Systems

被引：3
|
作者：
Tang, Lin [1 ,2 ]
Hu, Honglin [1 ,2 ]
Chen, Hsiao-Hwa [3 ]
机构：
[1] Shanghai Res Ctr Wireless Commun, Shanghai 200335, Peoples R China
[2] Chinese Acad Sci, Shanghai Inst Microsyst & Informat Technol, Shanghai 200050, Peoples R China
[3] Natl Cheng Kung Univ, Dept Engn Sci, Tainan 701, Taiwan
来源：
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY | 2009年 / 58卷 / 09期
关键词：
Lagrange multiplier; modulation and coding; orthogonal frequency-division multiplexing (OFDM); power loading; throughput; CODED MODULATION; FADING CHANNELS; TRANSMISSION;
D O I：
10.1109/TVT.2009.2026757
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Numerous power-loading techniques for wireless applications have been proposed in the literature. However, most of the existing power-loading schemes may not always be suitable for packet-access orthogonal frequency-division multiplexing (OFDM) systems. In this paper, we propose a Lagrange multiplier power-loading (LMPL) algorithm for packet-access OFDM systems with fixed modulation and coding transmission. The proposed LMPL algorithm offers a closed-form solution for the power-loading optimization problem under a total transmit power constraint. As a closed-form solution may not be available for adaptive modulation and coding (AMC) transmission, we use a low-complexity joint LMPL algorithm to enhance the system throughput. Numerical results show that the proposed LMPL algorithms outperform the traditional channel inversion power-loading (CIPL) scheme. It is also shown that the theoretically derived throughput very well matches the simulation results.
引用
收藏
页码：5324 / 5330
页数：7
相关论文
共 50 条
  • [21] Adaptive power loading with BER-constraint for OFDM systems
    LIU Kai-ming1
    [J]. The Journal of China Universities of Posts and Telecommunications, 2009, 16 (04) : 91 - 97
  • [22] Smart random channel access in OFDM systems by joint signal processing and packet scheduling
    Han, TW
    Li, XH
    [J]. SMCIA/03: PROCEEDINGS OF THE 2003 IEEE INTERNATIONAL WORKSHOP ON SOFT COMPUTING IN INDUSTRIAL APPLICATIONS, 2003, : 133 - 137
  • [23] Simple bit loading algorithms for OFDM-based systems with limited feedback
    Hadj-Kacem, Imed
    Sellami, Noura
    Fijalkow, Inbar
    [J]. 2012 16TH IEEE MEDITERRANEAN ELECTROTECHNICAL CONFERENCE (MELECON), 2012, : 1009 - 1012
  • [24] New adaptive bit loading algorithms for uplink multiuser OFDM/CDMA systems
    Zhang, H
    Bi, GA
    Yu, Q
    Hu, G
    [J]. 2004 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, VOLS 1-7, 2004, : 4128 - 4132
  • [25] Iterative Group-by-Group Bit-Loading Algorithms for OFDM Systems
    Wang, Deqiang
    Cao, Yewen
    Zheng, Laibo
    Du, Zhengfeng
    [J]. IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, 2013, 62 (08) : 4131 - 4135
  • [26] Adaptive power loading for OFDM-based cognitive radio systems
    Bansal, Gaurav
    Hossain, Md. Jahangir
    Bhargava, Vijay K.
    [J]. 2007 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, VOLS 1-14, 2007, : 5137 - 5142
  • [27] Power Loading Using Order Mapping in OFDM Systems With Limited Feedback
    Choi, Eun H.
    Choi, Wan
    Andrews, Jeffrey G.
    Womack, Baxter F.
    [J]. IEEE SIGNAL PROCESSING LETTERS, 2008, 15 : 545 - 548
  • [28] Signaling-Free Bit and Power Loading in MIMO OFDM Systems
    Haering, L.
    [J]. 2019 11TH INTERNATIONAL CONGRESS ON ULTRA MODERN TELECOMMUNICATIONS AND CONTROL SYSTEMS AND WORKSHOPS (ICUMT), 2019,
  • [29] Joint bit and power loading for adaptive MIMO OFDM VLC systems
    Siddiqi, Umair F.
    Narmanlioglu, Omer
    Uysal, Murat
    Sait, Sadiq M.
    [J]. TRANSACTIONS ON EMERGING TELECOMMUNICATIONS TECHNOLOGIES, 2020, 31 (07):
  • [30] Optimal Bit and Power Loading for OFDM Systems with Average BER and Total Power Constraints
    Bedeer, Ebrahim
    Dobre, Octavia A.
    Ahmed, Mohamed H.
    Baddour, Kareem E.
    [J]. 2012 IEEE GLOBAL COMMUNICATIONS CONFERENCE (GLOBECOM), 2012, : 3685 - 3689
12345