A new practical power and bit allocation algorithm in DMT systems

被引：0
|
作者：
Hu, J [1 ]
Liu, W [1 ]
机构：
[1] Xian Jiaotong Univ, Xian 710049, Peoples R China
来源：
APOC 2001: ASIA-PACIFIC OPTICAL AND WIRELESS COMMUNICATIONS, METRO AND ACCESS NETWORKS | 2001年 / 4583卷
关键词：
ADSL; DMT; power allocation;
D O I：
10.1117/12.445138
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
One of the advantages for Discrete Multitone(DMT) modulation systems compared to single carrier systems is that the power and bits may be allocated to each subchannel in some way for optimal performance. Some algorithms proposed before have high complexity and use flat power distribution which is not the optimal distribution. Based on the detail analysis of Water-Pouring theorem, a new practical algorithm is presented which match approximately matches the Water-Pouring distribution and can also the discrete bit loading problem. The simulation results show this algorithm has better performance and lower complexity.
引用
收藏
页码：289 / 294
页数：6
相关论文
共 50 条
  • [41] A low-complexity adaptive bit and power allocation algorithm for MIMO-OFDM systems
    Gao, L
    Luo, ZD
    Tang, BH
    Liu, YN
    Gao, JC
    International Symposium on Communications and Information Technologies 2005, Vols 1 and 2, Proceedings, 2005, : 542 - 545
  • [42] Dynamic Bound Restriction Iterative Algorithm Framework and Application to Power and Bit Allocation in OFDM Systems
    Zheng, Laibo
    Stueber, Gordon L.
    Wang, Deqiang
    Cao, Yewen
    IEEE TRANSACTIONS ON COMMUNICATIONS, 2013, 61 (03) : 1160 - 1170
  • [43] An Efficient Transmit Power and Bit Rate Allocation Algorithm for OFDM Based Cognitive Radio Systems
    Ma, Yuehuai
    Xu, Youyun
    Wang, Jin-Long
    IEICE TRANSACTIONS ON COMMUNICATIONS, 2011, E94B (01) : 302 - 306
  • [44] A fast suboptimal subcarrier, bit, and power allocation algorithm for multiuser OFDM-based systems
    Chen, YF
    Chen, JW
    Li, CP
    2004 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, VOLS 1-7, 2004, : 3212 - 3216
  • [45] Constrained Joint Bit and Power Allocation for Multicarrier Systems
    Bedeer, Ebrahim
    Dobre, Octavia A.
    Ahmed, Mohamed H.
    Baddour, Kareem E.
    2012 IEEE GLOBAL COMMUNICATIONS CONFERENCE (GLOBECOM), 2012, : 3655 - 3660
  • [46] Optimum Power Allocation and Bit Loading for BICM Systems
    Matas, David
    Lamarca, Meritxell
    IEEE TRANSACTIONS ON COMMUNICATIONS, 2010, 58 (08) : 2314 - 2323
  • [47] Optimal robust bit and power allocation for MIMO systems
    Zhang, Ranran
    Yang, Aimin
    Xie, Gang
    Liu, Yuanan
    Tang, Bihua
    2007 INTERNATIONAL SYMPOSIUM ON COMMUNICATIONS AND INFORMATION TECHNOLOGIES, VOLS 1-3, 2007, : 392 - 396
  • [48] High efficiency algorithm of power and bit allocation for OFDMA system
    Zhang, Dong-Mei
    Xu, You-Yun
    Cai, Yue-Ming
    Tongxin Xuebao/Journal on Communications, 2008, 29 (04): : 108 - 113
  • [49] Genetic algorithm approach for adaptive subcarrier, bit, and power allocation
    Reddy, Y. B.
    2007 IEEE INTERNATIONAL CONFERENCE ON NETWORKING, SENSING, AND CONTROL, VOLS 1 AND 2, 2007, : 14 - 19
  • [50] An efficient bit-loading algorithm for DMT applications
    Sonalkar, RV
    Shively, RR
    GLOBECOM 98: IEEE GLOBECOM 1998 - CONFERENCE RECORD, VOLS 1-6: THE BRIDGE TO GLOBAL INTEGRATION, 1998, : 2683 - 2688
12345