2009 First UK-India International Workshop on Cognitive Wireless Systems (UKIWCWS)最新文献

Clustered and leveled disjoint multipath routing algorithm for wireless sensor networks 无线传感器网络的聚类和分层不相交多径路由算法

2009 First UK-India International Workshop on Cognitive Wireless Systems (UKIWCWS) Pub Date : 2011-04-11 DOI: 10.1109/UKIWCWS.2009.5749392

M. S. Zaman, G. Rama

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引用次数: 2

A new degree distribution for LT codes for broadcasting in ad-hoc network using network coding 采用网络编码的自组织网络中广播用LT码的度数分布

2009 First UK-India International Workshop on Cognitive Wireless Systems (UKIWCWS) Pub Date : 2011-04-11 DOI: 10.1109/UKIWCWS.2009.5749389

M. S. Zaman, G. Ramamurthy

引用次数: 0

A hybrid energy detection approach to spectrum sensing 一种用于频谱传感的混合能量检测方法

2009 First UK-India International Workshop on Cognitive Wireless Systems (UKIWCWS) Pub Date : 2009-12-01 DOI: 10.1109/UKIWCWS.2009.5749385

S. Badrinath, V. Reddy

{"title":"A hybrid energy detection approach to spectrum sensing","authors":"S. Badrinath, V. Reddy","doi":"10.1109/UKIWCWS.2009.5749385","DOIUrl":"https://doi.org/10.1109/UKIWCWS.2009.5749385","url":null,"abstract":"This paper introduces a hybrid energy detection approach to spectrum sensing in cognitive radio. Conventional energy detection technique (with N samples) is based on two hypotheses — i) where all N are signal samples corrupted by noise, ii) where all N are noise-only samples. Based on these two hypotheses a threshold is set for declaring a given N-sample signal as belonging to either of the two cases. This paper considers those cases which occur in practice — M samples out of N being signal corrupted with noise and the rest being noise-only, 0 ≤ M ≤ N, thus covering the conventional two hypotheses as well. The method described here, referred to as “hybrid energy detection”, proposes a combination of a 32-sample detector with a 16-sample detector which yields an improvement in performance in most such mixed signal-noise cases. The “hybrid energy detection” method requires certain thresholds to be set, in order to maximize the gain. We use simulated annealing to find those threshold values. The cost function used for simulated annealing takes into consideration the ratio of sensing time interval to transmit time interval in the secondary user.","PeriodicalId":198556,"journal":{"name":"2009 First UK-India International Workshop on Cognitive Wireless Systems (UKIWCWS)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124050581","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: 13

An efficient spectrum mobility management strategy in cognitive radio networks 认知无线网络中一种有效的频谱移动性管理策略

2009 First UK-India International Workshop on Cognitive Wireless Systems (UKIWCWS) Pub Date : 2009-12-01 DOI: 10.1109/UKIWCWS.2009.5749388

P. Kaur, M. Udin, A. Khosla

引用次数: 14

Light Cognitive Radio enabled inter operator Flexible Spectrum Usage for IMT-Advanced 光认知无线电实现了IMT-Advanced的运营商间灵活频谱使用

2009 First UK-India International Workshop on Cognitive Wireless Systems (UKIWCWS) Pub Date : 2009-12-01 DOI: 10.1109/UKIWCWS.2009.5749405

Sanjay Kumar, N. Marchetti, R. Prasad

引用次数: 1

Application of distributed MIMO waterfilling algorithm for broadband channels and its performance in the presence of CSI errors 分布式MIMO充水算法在宽带信道中的应用及其在CSI误差下的性能

2009 First UK-India International Workshop on Cognitive Wireless Systems (UKIWCWS) Pub Date : 2009-12-01 DOI: 10.1109/UKIWCWS.2009.5749390

Amod J. G. Anandkumar, S. Lambotharan, J. Chambers

引用次数: 0

Multi hopping effect of Zigbee nodes coexisting with WLAN nodes in heterogeneous network environment 异构网络环境下Zigbee节点与WLAN节点共存的多跳效应

2009 First UK-India International Workshop on Cognitive Wireless Systems (UKIWCWS) Pub Date : 2009-12-01 DOI: 10.1109/UKIWCWS.2009.5749408

G. Tamilselvan, A. Shanmugam

引用次数: 8

Cognitive radio as common information exchange reference model for interoperability between hetrogeneous networks 认知无线电作为异构网络间互操作性的通用信息交换参考模型

2009 First UK-India International Workshop on Cognitive Wireless Systems (UKIWCWS) Pub Date : 2009-12-01 DOI: 10.1109/UKIWCWS.2009.5749393

P. Kaur, M. Udin, A. Khosla

引用次数: 2

Cooperative spectrum sensing protocols in cognitive radio based on energy detection 基于能量检测的认知无线电协同频谱感知协议

2009 First UK-India International Workshop on Cognitive Wireless Systems (UKIWCWS) Pub Date : 2009-12-01 DOI: 10.1109/UKIWCWS.2009.5749399

Stergios Stotas, A. Nallanathan

引用次数: 3

MIMO two-way relaying in frequency selective environment using OFDM 频率选择环境下使用OFDM的MIMO双向中继

2009 First UK-India International Workshop on Cognitive Wireless Systems (UKIWCWS) Pub Date : 2009-12-01 DOI: 10.1109/UKIWCWS.2009.5749406

Akshay Soni, Tanvi Sharma, Mohit Chandwani, Vijaykumar Chakka

引用次数: 5