OFDMA系统中小区内干扰避免的自适应资源分配方案

doi:10.13190/jbupt.200906.37.liushh

北京邮电大学学报 ›› 2009, Vol. 32 ›› Issue (6): 37-41.doi: 10.13190/jbupt.200906.37.liushh

OFDMA系统中小区内干扰避免的自适应资源分配方案

刘淑慧;崔杰;常永宇;杨大成

(北京邮电大学信息与通信工程学院, 北京 100876)

收稿日期:2009-04-08 修回日期:2009-09-11 出版日期:2009-12-28 发布日期:2009-12-28
通讯作者: 刘淑慧

Adaptive Resource Allocation in OFDMA with Insufficient Guard Interval under Fractional Load

LIU Shu-hui;CHANG Yong-yu;CUI Jie;YANG Da-cheng

(School of Information and Communication Engineering, Beijing University of
Posts and Telecommunications, Beijing 100876, China)

Received:2009-04-08 Revised:2009-09-11 Online:2009-12-28 Published:2009-12-28
Contact: LIU Shu-hui

摘要/Abstract

摘要：

正交频分多址接入（OFDMA）系统中，在保护间隔（GI）长度不足和非满载的情况下，提出一种新型的自适应资源分配（ARA）方案. 该方案可利用非满载情况下资源分配的灵活性来有效消除由于GI不足引起的小区内符号间干扰和载波间干扰,避免了接收端使用复杂的干扰消除算法. 在系统层进行仿真的结果表明，在非满载情况下，新的ARA算法的系统性能比传统的资源分配（CRA）算法有改善，但是在满载的情况下，由于ARA算法失去了灵活性，其性能与CRA算法相同.

关键词: 正交频分多址接入, 非满载, 保护间隔, 资源分配

Abstract:

Under fraction load （FL） and insufficient guard interval (GI), a novel adaptive resource allocation (ARA) scheme is proposed in the orthogonal frequency division multiple access (OFDMA) system. It utilizes the flexibility of radio resource management to mitigate the inter-symbol interference and inter-carrier interference due to the insufficient GI under FL instead of the complicated interference reduction algorithms at the receiver. System-level simulations show that, the proposed ARA improves system performance than the conventional resource allocation (CRA) under FL, whereas the performance of proposed ARA approaches the CRA under the full load due to the limitation of resource allocation flexibility.

Key words: orthogonal frequency division multiple access, fractional load, guard interval, resource allocation

刘淑慧;崔杰;常永宇;杨大成. OFDMA系统中小区内干扰避免的自适应资源分配方案[J]. 北京邮电大学学报, 2009, 32(6): 37-41.

LIU Shu-hui;CHANG Yong-yu;CUI Jie;YANG Da-cheng. Adaptive Resource Allocation in OFDMA with Insufficient Guard Interval under Fractional Load[J]. JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM, 2009, 32(6): 37-41.

参考文献

[1] 3GPP TS 36.104—2008, Base station (BS) radio transmission and reception [S]. 2008.
[2] Lu Sili, Kalbasi R, Al-Dhahir N. OFDM interference mitigation algorithms for doubly-selective channels//VTC-2006 Fall. Montréal: IEEE Press, 2006: 1-5.
[3] Chen Shaoping, Yao Tianren. FEQ for OFDM systems with insufficient CP//PIMRC 2003. Beijing: IEEE Press, 2003: 500-503.
[4] 3GPP TSG-RAN1, R1-060368—2006. Performance of inter-cell interference mitigation with semi-static frequency planning for EUTRA downlink[S]. 2006.
[5] Seok Ho Won, Hyeong Jun Park, Neel J O. Inter-cell interference coordination avoidance for frequency reuse by resource scheduling in an OFDM-based cellular system//VTC-2007 Fall. Baltimore: IEEE Press, 2007: 1722-1725.
[6] Jeong S S, Jeong D G, Jeon W S. Cross-layer design of packet scheduling and resource allocation in OFDMA wireless multimedia network//IEEE Proceedings of VTC2006-Spring, session 1C: scheduling and resource allocation. Melbourne: IEEE Press, 2006: 309-313.
[7] Huang Weilan, Letaief K B. A cross-layer resource allocation and scheduling for multiuser space-time block coded MIMO/OFDM systems//ICC 2005. Hong Kong: IEEE Press, 2005: 2655-2659.
[8] Van Duc Nguyen, Kuchenbecker H P. Intercarrier and intersymbol interference analysis of OFDM systems on time-varying channels//SPAWC 2003. Rome: IEEE Press, 2003: 140-144.
[9] Van Duc Nguyen, Kuchenbecker H P. Intercarrier and intersymbol interference analysis of OFDM systems on time-invariant channels//Personal, Indoor and Mobile Radio Communications 2002. Lisbon: IEEE Press, 2002: 1482-1487.
[10] Heda S, Ray B, Chakrabarti S. Analysis of effects of imperfect channel estimates and GI length in an OFDM system//ICPWC 2005. New Delhi: IEEE Press, 2005: 150-154.
[11] Sato I, Fujii T. The equivalent path model for evaluating multi-carrier CDMA transmission characteristics under multi-path fading environment exceeding guard interval//VTC 2004-Spring. Milian: IEEE Press, 2004: 1518-1522.
[12] Jalali A, Padovani R, Pankaj R. Data throughput of CDMA HDR high efficiency-high data rate personal communication wireless system//VTC 2000. Tokyo: IEEE Press, 2000: 1854-1858.
[13] 3GPP TR 25.895—2008, Analysis of higher chip rates for UTRA TDD evolution[S]. 2004.
[14] 3GPP TR 25.996—2008, Spatial channel model for multiple input multiple output (MIMO) simulations[S]. 2008.

[1]	魏明亮耿绥燕赵雄文胡玮范静怡. 超密集网络中移动边缘计算的资源分配和任务卸载联合优化研究[J]. 北京邮电大学学报, 2023, 46(2): 50-56.
[2]	公雨魏翼飞. 一种集成学习辅助DDPG的资源优化算法[J]. 北京邮电大学学报, 2023, 46(2): 29-36.
[3]	彭维平杨玉莹宋成阎俊豪. VEC中多边缘节点协作卸载与资源分配算法[J]. 北京邮电大学学报, 2023, 46(2): 78-83.
[4]	郭兴康孙君. 基于交替方向乘子法与深度强化学习算法的资源分配[J]. 北京邮电大学学报, 2022, 45(6): 126-130.
[5]	郁小松, 朱青橙, 顾佳明, 赵永利, 张杰. 云边协同光量子物联网架构及资源分配[J]. 北京邮电大学学报, 2022, 45(3): 50-56.
[6]	杜梅, 周军华, 李敦桥, 陈士钊, 魏翼飞. MEC计算卸载与资源分配联合智能优化方案[J]. 北京邮电大学学报, 2022, 45(2): 65-71.
[7]	张雨晴, 李云, 黄鸿锐, 庄宏成. 异构网络中任务卸载与资源分配联合优化算法[J]. 北京邮电大学学报, 2022, 45(2): 91-97.
[8]	贾雨宁, 魏翼飞, 周军华. 基于SDN与NFV的服务功能链编排算法[J]. 北京邮电大学学报, 2022, 45(2): 85-90.
[9]	高晓娜, 卢光跃, 叶迎晖, 昝金枚. 认知反向散射网络通信容量公平的资源优化[J]. 北京邮电大学学报, 2021, 44(6): 26-32.
[10]	黄晓舸, 王永生, 赖晨彬, 陈前斌. 车联网基于信任度的RSU识别及资源分配算法[J]. 北京邮电大学学报, 2021, 44(2): 109-115.
[11]	田辉, 倪万里, 王雯, 郑景桁, 贺硕. IRS辅助的边缘智能系统中基于数据重要性感知的资源分配[J]. 北京邮电大学学报, 2020, 43(6): 51-58.
[12]	薛建彬, 丁雪乾, 刘星星. 缓存辅助边缘计算的卸载决策与资源优化[J]. 北京邮电大学学报, 2020, 43(3): 32-37.
[13]	郭少雄, 刘玉涛, 吕玉静, 张中兆. 多载波认知无线电无线携能通信资源分配算法[J]. 北京邮电大学学报, 2020, 43(3): 19-23.
[14]	李强, 鲁昌龙, 曹斌, 张钦宇. 基于网络切片的高频谱效率无线资源管理[J]. 北京邮电大学学报, 2019, 42(4): 50-56.
[15]	田心记, 张浩天, 李晓静, 张长森. UDN中基于JR-CoMP的分簇和资源分配方案[J]. 北京邮电大学学报, 2019, 42(3): 72-78.

OFDMA系统中小区内干扰避免的自适应资源分配方案

Adaptive Resource Allocation in OFDMA with Insufficient Guard Interval under Fractional Load

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价