2012 National Conference on Communications (NCC)最新文献_第8页

Performance analysis of MRC receiver with channel estimation error and CCI in Nakagami-m fading channels 具有信道估计误差和CCI的MRC接收机在Nakagami-m衰落信道中的性能分析

2012 National Conference on Communications (NCC) Pub Date : 2012-04-03 DOI: 10.1109/NCC.2012.6176768

G. Aruna, P. R. Sahu

引用次数: 3

Regenerating codes: A reformulated storage-bandwidth trade-off and a new construction 再生代码:一个重新制定的存储带宽权衡和一个新的结构

2012 National Conference on Communications (NCC) Pub Date : 2012-04-03 DOI: 10.1109/NCC.2012.6176911

G. Kamath, P. V. Kumar

引用次数: 2

Projection-based atom selection in orthogonal matching pursuit for compressive sensing 基于投影的正交匹配追踪原子选择压缩感知

2012 National Conference on Communications (NCC) Pub Date : 2012-04-03 DOI: 10.1109/NCC.2012.6176797

S. Chatterjee, K. Hari, P. Händel, M. Skoglund

引用次数: 7

On the achievable rate of AWGN relay channel with finite input constellations 有限输入星座AWGN中继信道可达速率研究

2012 National Conference on Communications (NCC) Pub Date : 2012-04-03 DOI: 10.1109/NCC.2012.6176839

N. Shende, B. Rajan

引用次数: 1

Optimal deployment of impromptu wireless sensor networks 即兴无线传感器网络的优化部署

2012 National Conference on Communications (NCC) Pub Date : 2012-04-03 DOI: 10.1109/NCC.2012.6176830

Prasenjit Mondal, K. P. Naveen, Anurag Kumar

{"title":"Optimal deployment of impromptu wireless sensor networks","authors":"Prasenjit Mondal, K. P. Naveen, Anurag Kumar","doi":"10.1109/NCC.2012.6176830","DOIUrl":"https://doi.org/10.1109/NCC.2012.6176830","url":null,"abstract":"The need for impromptu wireless networks arises in emergency situations where the team responding to the emergency, needs to deploy sensors (such as motion sensors, or even imaging sensors) and a wireless interconnection network, without any prior planning or knowledge of the terrain. In this paper, we consider a simple model for the sequential deployment of wireless relays as a person steps along a “corridor” of unknown length, so as to create a multihop network for interconnecting a sensor to be placed at the end of the corridor with a control truck standing near the entry to the corridor. Assuming low traffic and simple link-by-link scheduling, we consider the problem of minimising an end-to-end cost metric (e.g., delay or power from the sensor to the control centre) subject to a constraint on the number of relays. Two kinds of constraints are considered: the expected number of relays is bounded, or the actual number of relays is bounded. In each case, the problem is formulated as a Markov decision process. The problem of deciding whether or not to place a relay at each step is shown to be equivalent to a certain stochastic shortest path problem embedded at relay placement points. Numerical results are provided to illustrate the performance trade-offs.","PeriodicalId":178278,"journal":{"name":"2012 National Conference on Communications (NCC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123977579","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

Full CSI selection combining for multi-relay cooperative diversity systems 多中继合作分集系统的全CSI选择组合

2012 National Conference on Communications (NCC) Pub Date : 2012-04-03 DOI: 10.1109/NCC.2012.6176770

M. D. Selvaraj, R. Mallik

引用次数: 7

Energy efficient scheduling in 4G smart phones for Mobile Hotspot application 面向移动热点应用的4G智能手机节能调度

2012 National Conference on Communications (NCC) Pub Date : 2012-04-03 DOI: 10.1109/NCC.2012.6176904

K. Keshav, V. Indukuri, P. Venkataram

{"title":"Energy efficient scheduling in 4G smart phones for Mobile Hotspot application","authors":"K. Keshav, V. Indukuri, P. Venkataram","doi":"10.1109/NCC.2012.6176904","DOIUrl":"https://doi.org/10.1109/NCC.2012.6176904","url":null,"abstract":"With higher data rates becoming reality, there are quite a few Internet sharing applications that are increasingly becoming popular on present day smart phones. These applications are very useful and are widely popular by names such as Mobile Hotspot, Tethering, and MiFi etc. Using these applications, multiple users (such as friends, family members and colleagues in a limited area) can share Internet from a single high speed wireless network link. Typically in this method, a mobile device (smart phone or dongle) connects to backbone network using communication networks such as 4G/HSPA+ etc. which provides high speed data link and mobile phone in turn acts as a local Internet access point for other devices using communication technologies like Wi-Fi/Bluetooth. Wi-Fi access points were originally designed to be operated as standalone devices connected with a power supply and hence no specific care was taken to save power of base stations. Though subsequent enhancements were made in specifications to incorporate power saving mode in Wi-Fi Technology to optimize power consumption of the clients, Mobile Hotspot applications does not come under the purview of such enhancements. Due to this, present day Mobile phones which run on battery and host these applications for acting as Wi-Fi Hotspot, demonstrate very poor battery life. We have performed few experiments with commercially available products, which show that technologies like LTE (Long Term Evolution) which act as the backbone for these mobile hotspot applications consume very high power. Together LTE & Wi-Fi are draining Mobile Station current at alarming rate. Effort of this work is to strike a balance between maximum achievable QOS (Quality of Service) for end users and increased battery life of mobile phone which is acting as WiFi access point. This can be achieved by efficiently coordinating power saving techniques provided by LTE/3G wireless communication specifications and those provided by Wi-Fi specifications.","PeriodicalId":178278,"journal":{"name":"2012 National Conference on Communications (NCC)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129603286","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: 25

VoIP scheduling with reduced overhead and radio resource usage estimation-effect on best effort capacity 降低话费和无线电资源使用估计的VoIP调度——基于最佳努力能力的影响

2012 National Conference on Communications (NCC) Pub Date : 2012-04-03 DOI: 10.1109/NCC.2012.6176783

P. Ghosh, S. Das, P. Chandhar

{"title":"VoIP scheduling with reduced overhead and radio resource usage estimation-effect on best effort capacity","authors":"P. Ghosh, S. Das, P. Chandhar","doi":"10.1109/NCC.2012.6176783","DOIUrl":"https://doi.org/10.1109/NCC.2012.6176783","url":null,"abstract":"In this work Dynamic and Semi-Persistent (SP) scheduling strategies and their capacity limits for Voice over IP (VoIP) with 1×2 antenna configuration in 3rd Generation Partnership Project (3GPP)-Long Term Evolution (LTE) network are presented. A method to reduce Channel Quality Indicator (CQI) feedback and Modulation and Coding Scheme (MCS) signaling for VoIP service has been proposed which not only saves a significant amount of overhead bits but also increases the capacity in terms of VoIP users. A model for predicting the effective radio resource usage(Physical Resource Block (PRB)s) for a given number of VoIP users, as a function of the Signal to Interference plus Noise Ratio (SINR) of the users is developed. This is useful in estimating the average number of available PRBs per Transmit Time Interval (TTI) when there is fractional VoIP load. The predicted numbers of available PRBs are closely matching with the results obtained from simulation. The model can be used to find the allowable Best Effort (BE) traffic throughput for mixed traffic scheduling during fractional VoIP load. The capacity region for mixed VoIP and BE services is also presented here.","PeriodicalId":178278,"journal":{"name":"2012 National Conference on Communications (NCC)","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127917838","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

Subword based approach for grapheme-to-phoneme conversion in Bengali text-to-speech synthesis system 孟加拉文语音合成系统中基于子词的字素-音素转换方法

2012 National Conference on Communications (NCC) Pub Date : 2012-04-03 DOI: 10.1109/NCC.2012.6176832

K. Ghosh, K. S. Rao

引用次数: 3

Jamming to foil an eavesdropper 干扰以阻止窃听者

2012 National Conference on Communications (NCC) Pub Date : 2012-04-03 DOI: 10.1109/NCC.2012.6176761

N. Kashyap, Y. Sankarasubramaniam, A. Thangaraj

引用次数: 0