2013 International Conference on Wireless Communications and Signal Processing最新文献_第10页

Multi-channel access in wireless networks using interference-aware channel segregation based dynamic channel assignment 基于动态信道分配的干扰感知信道隔离无线网络中的多信道接入

2013 International Conference on Wireless Communications and Signal Processing Pub Date : 2013-12-02 DOI: 10.1109/WCSP.2013.6677265

K. Temma, Yuki Matsumura, F. Adachi

{"title":"Multi-channel access in wireless networks using interference-aware channel segregation based dynamic channel assignment","authors":"K. Temma, Yuki Matsumura, F. Adachi","doi":"10.1109/WCSP.2013.6677265","DOIUrl":"https://doi.org/10.1109/WCSP.2013.6677265","url":null,"abstract":"The co-channel interference (CCI) limits the capacity of wireless networks due to the limited number of available channels and the fact that the same channel must be reused in the system. Recently, we proposed the interference-aware channel segregation based dynamic channel assignment (IACS-DCA). Stable channel reuse pattern can be formed in a distributed manner which can minimize the CCI experienced at access points (APs) or base stations (BSs). In this paper, we introduce a multi-channel access technique for the IACS-DCA. Each AP has channel priority table, in which the channels are listed by the ascending order of average CCI power. Original IACS-DCA assumes the single channel access using the first priority channel with the lowest average CCI power. By using multiple channels at the same time in the descending priority order, more number of users can access an AP. However, the use of channels below the first orders at the same time increases the CCI and may make the channel reuse pattern unstable. We examine, by computer simulation, the channel reuse pattern and confirm that the IACS-DCA improves the signal-to-interference power ratio (SIR) even with multi-channel access compared to the conventional quasi-DCA using multi-channel access.","PeriodicalId":342639,"journal":{"name":"2013 International Conference on Wireless Communications and Signal Processing","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126130452","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Power efficient multicast transmission framework with QoS awareness 具有QoS感知的高能效组播传输框架

2013 International Conference on Wireless Communications and Signal Processing Pub Date : 2013-12-02 DOI: 10.1109/WCSP.2013.6677218

Zheng Chang, T. Ristaniemi

引用次数: 1

Energy-sensitive cooperative spectrum sharing: A contract design approach 能源敏感型合作频谱共享:一种契约设计方法

2013 International Conference on Wireless Communications and Signal Processing Pub Date : 2013-12-02 DOI: 10.1109/WCSP.2013.6677093

Zilong Zhou, Xinxin Feng, Xiaoying Gan

{"title":"Energy-sensitive cooperative spectrum sharing: A contract design approach","authors":"Zilong Zhou, Xinxin Feng, Xiaoying Gan","doi":"10.1109/WCSP.2013.6677093","DOIUrl":"https://doi.org/10.1109/WCSP.2013.6677093","url":null,"abstract":"In cooperative spectrum sharing, secondary users consume their energy to relay primary user's traffics in exchange for permission to access the spectrum licensed to primary user. As energy consumption is an important issue for mobile secondary users operating on batteries, it is reasonable for these secondary users to be energy-sensitive. In this paper, we utilize contract theory to deal with the cooperative spectrum sharing problem under the condition of secondary users being energy-sensitive. In our scheme, primary user wishes to benefit from cooperative communication with secondary users and selling spectrum access opportunities on the premise of not degrading its own performance. Primary user's objective is to design an optimal contract that maximizes its utility and offer it to secondary users. Secondary users are classified into different types according to their characteristics. We analyze the optimal contract design problem under symmetric and asymmetric information scenarios and propose a low complexity algorithm called TSSOA to find the optimal contract for primary user. Finally, we present and analyze the numerical results, which confirm the efficiency of the proposed scheme.","PeriodicalId":342639,"journal":{"name":"2013 International Conference on Wireless Communications and Signal Processing","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127840639","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Handover based on receive beamforming in high mobility cellular communication networks 高移动性蜂窝通信网络中基于接收波束形成的切换

2013 International Conference on Wireless Communications and Signal Processing Pub Date : 2013-12-02 DOI: 10.1109/WCSP.2013.6677271

Cuiling Qi, Zhaoyang Zhang, Chao Wang

引用次数: 1

Distributed link scheduling for congestion control in multihop wireless network 基于分布式链路调度的多跳无线网络拥塞控制

2013 International Conference on Wireless Communications and Signal Processing Pub Date : 2013-12-02 DOI: 10.1109/WCSP.2013.6677251

Sha Dong, Qinghai Yang, Fenglin Fu, K. Kwak

引用次数: 2

MIMO iterative receiver using lattice reduction-aided detection and successive interference cancellation 采用点阵约简辅助检测和逐次干扰消除的MIMO迭代接收机

2013 International Conference on Wireless Communications and Signal Processing Pub Date : 2013-12-02 DOI: 10.1109/WCSP.2013.6677056

Wei Bai, Qiaoyu Li, Lin Bai, Jinho Choi

引用次数: 1

Image fusion based on TV -L1-convex constrained algorithm 基于TV - l1 -凸约束算法的图像融合

2013 International Conference on Wireless Communications and Signal Processing Pub Date : 2013-12-02 DOI: 10.1109/WCSP.2013.6677147

Qiwei Xie, Qian Long, S. Mita, X. Chen, A. Jiang

引用次数: 1

An efficient turbo receiver for LTE downlink 一种用于LTE下行链路的高效turbo接收机

2013 International Conference on Wireless Communications and Signal Processing Pub Date : 2013-12-02 DOI: 10.1109/WCSP.2013.6677033

Y. Wang, Ming Jiang, Chunming Zhao

引用次数: 0

Downlink interference mitigation for OFDMA femtocell networks OFDMA飞蜂窝网络的下行干扰缓解

2013 International Conference on Wireless Communications and Signal Processing Pub Date : 2013-12-02 DOI: 10.1109/WCSP.2013.6677254

Hong Ren, Cunhua Pan, Wence Zhang, Ming Chen

{"title":"Downlink interference mitigation for OFDMA femtocell networks","authors":"Hong Ren, Cunhua Pan, Wence Zhang, Ming Chen","doi":"10.1109/WCSP.2013.6677254","DOIUrl":"https://doi.org/10.1109/WCSP.2013.6677254","url":null,"abstract":"Femtocell is a very promising technology to enhance the indoor coverage and improve the network capacity. However, the cross-tier and co-tier interference are the key issues in two-tier femtocell networks. This paper treats the downlink interference problem in orthogonal frequency-division multiple-access (OFDMA) femtocell networks with partial cochannel deployment. We first propose an cross-tier interference mitigation strategy without power control among femtocell users by forcing the femto-interfering macrocell users to occupy the dedicated subcarriers. The non-interfering macrocell users, on the other hand, can use either the dedicated subcarriers, or the shared subcarriers which are also occupied by the femtocell users. Then, to mitigate the interference from macrocell base station (MBS) to femtocell users (FUs), a joint power and subcarrier allocation model based on minimizing transmit power is formulated. Furthermore, to improve the macrocell network performance, the resource allocation model based on maximizing throughput is proposed. At last, we devise a subcarrier allocation scheme to mitigate co-tier interference among femtocells. The results show that the partial cochannel scheme is the trade-off between transmit power and outage compared with cochannel and orthogonal deployment. Moreover macrocell can achieve the maximum throughput under the proposed partial cochannel deployment.","PeriodicalId":342639,"journal":{"name":"2013 International Conference on Wireless Communications and Signal Processing","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117112226","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Stackelberg game based optimized power allocation scheme for two-tier femtocell network 基于Stackelberg博弈的双层飞蜂窝网络优化功率分配方案

2013 International Conference on Wireless Communications and Signal Processing Pub Date : 2013-12-02 DOI: 10.1109/WCSP.2013.6677160

Manzoor Ahmed, M. Peng, I. Ahmad, Yuan Li, M. Abana

{"title":"Stackelberg game based optimized power allocation scheme for two-tier femtocell network","authors":"Manzoor Ahmed, M. Peng, I. Ahmad, Yuan Li, M. Abana","doi":"10.1109/WCSP.2013.6677160","DOIUrl":"https://doi.org/10.1109/WCSP.2013.6677160","url":null,"abstract":"Two-tier femtocell network is considered a promising architecture to cope with the unprecedented mobile data rate demand. Since macrocell users' quality of service (QoS) have the highest priority to be maintained, which is severely affected by the cross-tier interference. Therefore power control is considered as the most effective solution, where the power of the femto base stations (FBSs) in the downlink is adjusted such that the interference caused to macrocell user is kept under an acceptable level. In this paper, we model this scenario as Stackelberg game, where the macrocell protects its users by imposing price on each FBS causing the interference, considering FBSs are under maximum transit power constraint. Most of the previous research works are based on iterative methods to achieve Stackelberg equilibrium (SE) for solving the problem. In this paper, we present a unique closed form solution to the Stackelberg game based on convex optimization method considering some assumptions. The numerical results are presented to verify the proposed study and performance enhancement of both the macro and femto users.","PeriodicalId":342639,"journal":{"name":"2013 International Conference on Wireless Communications and Signal Processing","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115856686","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 11