2014 IEEE Wireless Communications and Networking Conference (WCNC)最新文献

Spectrum sharing via HARQ feedback and adaptive power allocation 通过HARQ反馈和自适应功率分配实现频谱共享

2014 IEEE Wireless Communications and Networking Conference (WCNC) Pub Date : 2014-11-20 DOI: 10.1109/WCNC.2014.6952249

Behrooz Makki, T. Eriksson, T. Svensson

引用次数: 1

Performance analysis of general order selection in decentralized cognitive radio networks 分散认知无线电网络中一般阶数选择的性能分析

2014 IEEE Wireless Communications and Networking Conference (WCNC) Pub Date : 2014-11-20 DOI: 10.1109/WCNC.2014.6952527

Mahmoud Elsaadany, T. Khattab

引用次数: 1

Relay selection and power allocation with minimum rate guarantees for cognitive radio systems 认知无线电系统最小速率保证中继选择与功率分配

2014 IEEE Wireless Communications and Networking Conference (WCNC) Pub Date : 2014-11-20 DOI: 10.1109/WCNC.2014.6953029

Yang Yu, Chaowei Wang, Weidong Wang, Yinghai Zhang

{"title":"Relay selection and power allocation with minimum rate guarantees for cognitive radio systems","authors":"Yang Yu, Chaowei Wang, Weidong Wang, Yinghai Zhang","doi":"10.1109/WCNC.2014.6953029","DOIUrl":"https://doi.org/10.1109/WCNC.2014.6953029","url":null,"abstract":"This paper investigates joint relay selection (RS) and power allocation (PA) in cognitive radio (CR) systems, in which relay nodes operate in amplify-and-forward (AF) mode. In contrast to the conventional schemes, we take into account the performance of the secondary user (SU) which acts as the relay. A two-step optimization scheme is proposed to maximize system throughput with minimum rate guarantees for the source and the relay while the interference introduced to the primary user (PU) is kept below a specified threshold. The PA optimization in the first step is non-convex, and hence hard to solve in general. To tackle this, we introduce a power proportionality factor at the relay to decompose the non-convex optimization into two levels. Based on dual method and search method at inner level and outer level respectively, a closed-form solution for the optimal PA between the source and the relay is derived. In order to reduce complexity of repeating the PA procedures at all the relay candidates while maintaining reasonable performance, we also develop a suboptimal approach. Furthermore, simulation results and comparisons are presented to illustrate the performance of the proposed scheme.","PeriodicalId":220393,"journal":{"name":"2014 IEEE Wireless Communications and Networking Conference (WCNC)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127391091","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: 5

Novel modulation detection scheme for underwater acoustic communication signal through short-time detailed cyclostationary features 基于短时精细周期平稳特征的水声通信信号调制检测新方案

2014 IEEE Wireless Communications and Networking Conference (WCNC) Pub Date : 2014-11-20 DOI: 10.1109/WCNC.2014.6952120

Xue Li, Qian Han, Zhiqiang Liu, Zhiqiang Wu

{"title":"Novel modulation detection scheme for underwater acoustic communication signal through short-time detailed cyclostationary features","authors":"Xue Li, Qian Han, Zhiqiang Liu, Zhiqiang Wu","doi":"10.1109/WCNC.2014.6952120","DOIUrl":"https://doi.org/10.1109/WCNC.2014.6952120","url":null,"abstract":"In this paper, we propose a new method for blind modulation detection based on detailed second order cyclostationary features for underwater acoustic communication. Due to the severe and fast varying Doppler shift and phase noise in the underwater acoustic communication channel, much shorter signal length can be used to detection the modulation scheme, leading to less accuracy in the modulation detection performance. Here we propose a brand new method to perform modulation detection: by analyzing the zoomed-in spectral coherence function (SOF) of short time signal, we observe distinctive detailed features for different modulations. Taking advantage of such detailed features in short time SOF, we design a novel blind modulation detection algorithm for underwater acoustic communication system. To the best of our knowledge, our paper is the first to employ such detailed, in some sense hidden, features of cyclostationary analysis to conduct modulation detection. Coupled with our previous work on blind carrier frequency estimation and symbol rate estimation algorithms, the proposed modulation detection algorithm enjoys very high detection accuracy, high speed, and low complexity. Real experimental data collected at sea are used to validate the effectiveness of the proposed algorithm. It is also important to note that the proposed method does not assume any a priori knowledge of the target signal.","PeriodicalId":220393,"journal":{"name":"2014 IEEE Wireless Communications and Networking Conference (WCNC)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126091217","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: 10

Distributed space-time codes for amplify-and-forward relaying networks 扩和转发中继网络的分布式空时码

2014 IEEE Wireless Communications and Networking Conference (WCNC) Pub Date : 2014-11-20 DOI: 10.1109/WCNC.2014.6952314

M. O. E. Astal, B. P. Salmon, J. Olivier

引用次数: 0

Performance of maximum-largest weighted delay first algorithm in long term evolution-advanced with carrier aggregation 基于载波聚合的最大加权延迟优先算法的长期进化性能

2014 IEEE Wireless Communications and Networking Conference (WCNC) Pub Date : 2014-11-20 DOI: 10.1109/WCNC.2014.6952397

H. Ramli

引用次数: 12

Cell sectorization and power management for inter-cell interference coordination in OFDMA-based network MIMO systems 基于ofdma的网络MIMO系统中小区间干扰协调的小区划分和电源管理

2014 IEEE Wireless Communications and Networking Conference (WCNC) Pub Date : 2014-04-06 DOI: 10.1109/WCNC.2014.6952475

Jeng-Shin Sheu, Sin-Hong Lyu, Song-Jhe Lyu

引用次数: 6

Incentive mechanism for participatory sensing under budget constraints 预算约束下参与式感知的激励机制

2014 IEEE Wireless Communications and Networking Conference (WCNC) Pub Date : 2014-04-06 DOI: 10.1109/WCNC.2014.6953116

Zheng Song, E. Ngai, Jian Ma, Xiangyang Gong, Yazhi Liu, Wendong Wang

引用次数: 11

On scheduling algorithm for device-to-device communication in 60 GHz networks 60 GHz网络中设备间通信调度算法研究

2014 IEEE Wireless Communications and Networking Conference (WCNC) Pub Date : 2014-04-06 DOI: 10.1109/WCNC.2014.6952777

W. Rehman, Jiang Han, Chengcheng Yang, Manzoor Ahmed, Xiaofeng Tao

引用次数: 19

Novel MGF-based expressions for the average bit error probability of binary signalling over generalized fading channels 基于mgf的广义衰落信道二进制信号平均误码概率新表达式

2014 IEEE Wireless Communications and Networking Conference (WCNC) Pub Date : 2014-04-06 DOI: 10.1109/WCNC.2014.6952286

F. Yilmaz, Mohamed-Slim Alouini

引用次数: 2