2016 IEEE International Conference on Advanced Networks and Telecommunications Systems (ANTS)最新文献_第5页

SAGE based semi-blind channel estimation technique for massive MIMO system 基于SAGE的海量MIMO系统半盲信道估计技术

2016 IEEE International Conference on Advanced Networks and Telecommunications Systems (ANTS) Pub Date : 2016-11-01 DOI: 10.1109/ANTS.2016.7947868

K. Mawatwal, D. Sen, R. Roy

{"title":"SAGE based semi-blind channel estimation technique for massive MIMO system","authors":"K. Mawatwal, D. Sen, R. Roy","doi":"10.1109/ANTS.2016.7947868","DOIUrl":"https://doi.org/10.1109/ANTS.2016.7947868","url":null,"abstract":"In this paper, we have addressed the problem of channel estimation in massive MIMO systems, because the large scale benefits of massive MIMO relies on the accuracy of channel state information (CSI) available with the system. We have proposed an iterative space-alternating generalized expectation maximization (SAGE) based semi-blind channel estimation technique. The proposed method iteratively updates the initial estimate (obtained by the pilot based maximum-likelihood estimation (MLE)) with the help of a SAGE algorithm on pilot and data symbols. The method improves the CSI accuracy without the addition of extra pilot symbols, and converges in almost two iterations which is shown through simulations. The performance of the proposed method is compared with the existing estimators in terms of computational complexity, mean-squared error (MSE), and bit error rate (BER). Simulation results show that the proposed semi-blind estimator achieves significant gain over the existing pilot based estimators. Further, Cramer-Rao lower bound (CRLB) is derived to validate the performance efficacy of the proposed estimator.","PeriodicalId":248902,"journal":{"name":"2016 IEEE International Conference on Advanced Networks and Telecommunications Systems (ANTS)","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115598560","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

Performance analysis of Wi-Fi Direct for vehicular ad-hoc networks 车载ad-hoc网络Wi-Fi Direct的性能分析

2016 IEEE International Conference on Advanced Networks and Telecommunications Systems (ANTS) Pub Date : 2016-11-01 DOI: 10.1109/ANTS.2016.7947854

A. Balasundram, Tharaka Samarasinghe, D. Dias

引用次数: 7

An efficient approach for load balancing in vehicular ad-hoc networks 一种有效的车载自组织网络负载均衡方法

2016 IEEE International Conference on Advanced Networks and Telecommunications Systems (ANTS) Pub Date : 2016-11-01 DOI: 10.1109/ANTS.2016.7947768

Shubham Agarwal, Avirup Das, Nabanita Das

{"title":"An efficient approach for load balancing in vehicular ad-hoc networks","authors":"Shubham Agarwal, Avirup Das, Nabanita Das","doi":"10.1109/ANTS.2016.7947768","DOIUrl":"https://doi.org/10.1109/ANTS.2016.7947768","url":null,"abstract":"With the rapid increase in vehicular traffic in urban areas, optimal use of available resources is necessary to minimize the cost while maintaining the safety, and the quality of service. For this purpose, Vehicular Ad hoc Networks (VANETs) are emerging, connecting vehicles with static road side units (RSUs) serving as a backbone. For energy efficiency, vehicles may upload data to the nearest RSU by multi-hop routing via shortest paths. But it drains the energy of the nodes nearer to the RSU faster leading to frequent recharging of batteries. For cost-efficient design and longer battery life, both optimal placement of RSUs and uniform power dissipation of nodes are necessary in VANETs. In this paper, a novel approach of load balanced routing is proposed to improve the network stability and battery lifetime in individual nodes. Assuming variable energy levels of transmission in each vehicle, our analysis establishes some upper bounds on the separation of two consecutive RSUs for nearly load balanced routing. The problem has been defined for linear network with uniform distribution of vehicles over 1-D road. Simulation studies show that the proposed scheme enhances the network performance significantly in terms of energy usage, network load and average packet delay.","PeriodicalId":248902,"journal":{"name":"2016 IEEE International Conference on Advanced Networks and Telecommunications Systems (ANTS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130834299","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: 12

On the robustness of AQM mechanisms against non-responsive traffic AQM机制对非响应流量的鲁棒性研究

2016 IEEE International Conference on Advanced Networks and Telecommunications Systems (ANTS) Pub Date : 2016-11-01 DOI: 10.1109/ANTS.2016.7947857

Sachin D. Patil, M. Tahiliani

引用次数: 4

Towards cost-effective capacity provisioning for fault-tolerant green distributed data centers 为容错绿色分布式数据中心提供经济高效的容量供应

2016 IEEE International Conference on Advanced Networks and Telecommunications Systems (ANTS) Pub Date : 2016-11-01 DOI: 10.1109/ANTS.2016.7947778

Rakesh Tripathi, S. Vignesh, V. Tamarapalli

{"title":"Towards cost-effective capacity provisioning for fault-tolerant green distributed data centers","authors":"Rakesh Tripathi, S. Vignesh, V. Tamarapalli","doi":"10.1109/ANTS.2016.7947778","DOIUrl":"https://doi.org/10.1109/ANTS.2016.7947778","url":null,"abstract":"Many critical e-commerce and financial services predominantly depend on geo-distributed data centers for scalability and availability. Recent market surveys show that failure of a data center is inevitable causing huge financial loss. Fault-tolerant distributed data centers are typically designed by provisioning spare capacity to mask failure at a site. At the same time, data center operators are trying to reduce their carbon footprint by using renewable energy power. Thus, a key challenge in spare capacity provisioning is to distribute the additional servers across the sites, minimizing the total cost of ownership (which includes the server acquisition cost and operating cost) while maximizing the usage of renewable energy. While the existing models minimize the number of servers, we demonstrate that brown electricity price and renewable energy availability should be considered for sustainable fault tolerant data center design. We use mixed integer linear programming formulation to minimize the total cost of ownership (TCO), while handling constraints such as delay bound, partial or complete failure, and intermittent supply of renewable energy. By solving the optimization problem, we demonstrate that the proposed model reduces the TCO by 48% compared to CDN model (minimize latency), and by 24% compared to minimum server model (minimizes server cost). Results also highlight the impact of latency, number of data centers, failure percentage, and demand variation on the TCO.","PeriodicalId":248902,"journal":{"name":"2016 IEEE International Conference on Advanced Networks and Telecommunications Systems (ANTS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129722702","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

MIL-STD-1553 based wireless visible light communication system 基于MIL-STD-1553的无线可见光通信系统

2016 IEEE International Conference on Advanced Networks and Telecommunications Systems (ANTS) Pub Date : 2016-11-01 DOI: 10.1109/ANTS.2016.7947843

Sandip Das, Nilesh Chandrakar, Suvra Shekhar Das

{"title":"MIL-STD-1553 based wireless visible light communication system","authors":"Sandip Das, Nilesh Chandrakar, Suvra Shekhar Das","doi":"10.1109/ANTS.2016.7947843","DOIUrl":"https://doi.org/10.1109/ANTS.2016.7947843","url":null,"abstract":"In this article, we present a design of an MIL-STD-1553 based wireless visible light communication (VLC) system. The system is designed in Field Programmable Gate Array (FPGA) in order to provide maximum flexibility in implementation. The design of the system consists of three major components namely, VLC front end, FPGA physical layer and firmware design and MIL-STD-1553 MAC design. The designed VLC front end achieves up to 16 Mbps speed and distance of separation of 4.5m with low cost of the self LED and photodetector components. Furthermore, a design architecture of MIL-STD-1553 based wireless VLC system is proposed which is a promising candidate for wireless avionics communications. A modification of traditional wired bus MIL-STD-1553 signaling is proposed for use with wireless VLC system and subsequently implemented in FPGA-based hardware for real-time evaluation. The entire physical layer, firmware and MAC layer are implemented in FPGA-based Xilinx's Zynq System on Chip (SoC) hardware. The design of the system is shown to have very minimal resource requirements when implemented in hardware. The real-time over-the-air performance results are obtained using over-the-air transmission and reception of data traffic through the testbed using On-Off-Keying (OOK) with Line of Sight (LOS) and SISO configuration. Finally, a small scale demonstrable experimental test setup consisting of three nodes (one BC and two RTs) is presented in this paper which is an early prototype of an OnBoard Data Handling (OBDH) in the satellite.","PeriodicalId":248902,"journal":{"name":"2016 IEEE International Conference on Advanced Networks and Telecommunications Systems (ANTS)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127674144","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

An overlay management strategy to improve peer stability in P2P live streaming systems 一种提高P2P直播系统中对等体稳定性的覆盖管理策略

2016 IEEE International Conference on Advanced Networks and Telecommunications Systems (ANTS) Pub Date : 2016-11-01 DOI: 10.1109/ANTS.2016.7947813

Shilpa Budhkar, V. Tamarapalli

{"title":"An overlay management strategy to improve peer stability in P2P live streaming systems","authors":"Shilpa Budhkar, V. Tamarapalli","doi":"10.1109/ANTS.2016.7947813","DOIUrl":"https://doi.org/10.1109/ANTS.2016.7947813","url":null,"abstract":"Peer-to-peer (P2P) live streaming systems rely on utilizing peers' free resources to alleviate the load on streaming servers. In these systems peers join and leave the overlay based on interest in the stream and streaming quality. Therefore, to ensure scalable streaming a large number of stable peers are required in the system. In this work we propose an overlay management strategy to improve peer stability. The stability of a peer depends on various metrics like startup delay, stream quality and number of stable peer links. Therefore, two steps are taken to improve the peer stability. First, the tracker creates virtual sources which helps in reducing startup delay and improving peer's initial streaming quality. Second, peer stability is predicted using some parameters which ensures that only stable peers are selected as partners. The partner selection procedure improves the streaming quality of peers and reduces playback interruptions. Using simulations we compare the performance of the proposal with an existing strategy. Results demonstrate that there is an improvement in the quality of service, which further improves peer stability.","PeriodicalId":248902,"journal":{"name":"2016 IEEE International Conference on Advanced Networks and Telecommunications Systems (ANTS)","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128362245","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: 4

A novel frequency reconfigurable rectangular step slotted antenna for WLAN/ITU 一种用于WLAN/ITU的新型频率可重构矩形步进开槽天线

2016 IEEE International Conference on Advanced Networks and Telecommunications Systems (ANTS) Pub Date : 2016-11-01 DOI: 10.1109/ANTS.2016.7947833

T. Ali, Sameena Pathan, R. Biradar

引用次数: 1

Downlink interference control through adaptive DRX in a carrier aggregation enabled LTE-Advanced heterogeneous networks 基于载波聚合的LTE-Advanced异构网络中的自适应DRX下行干扰控制

2016 IEEE International Conference on Advanced Networks and Telecommunications Systems (ANTS) Pub Date : 2016-11-01 DOI: 10.1109/ANTS.2016.7947786

I. Baig, S. Chaudhuri, D. Das

{"title":"Downlink interference control through adaptive DRX in a carrier aggregation enabled LTE-Advanced heterogeneous networks","authors":"I. Baig, S. Chaudhuri, D. Das","doi":"10.1109/ANTS.2016.7947786","DOIUrl":"https://doi.org/10.1109/ANTS.2016.7947786","url":null,"abstract":"An LTE-Advanced (LTE-A) Heterogeneous Network (HetNet) constitutes of a macro cell and small cells, where, the former acts as an overlay network and the latter as an underlay network. In HetNet, enabling Carrier Aggregation (CA) usually results in severe downlink interference at small cells from macro cell because of high powered transmissions from macro cell on over-lapping component carriers (co-channels). The intensity of downlink interference is much more profound in HetNet enabled with CA than compared with a single carrier HetNet and ultimately affects the Quality of Service (QoS) of users connected to small cells. Some frequency domain solutions like cross carrier scheduling, soft frequency reuse, and downlink power control have been proposed so far, but they do not provide complete orthogonal transmissions among macro and small cells, leading to adjacent channel interference. Also, a few time domain approaches like Almost Blank Subframe (ABS), dynamic ABS have been proposed in the literature. However, the resource utilization of cells decreases due to high number of ABS assignments in the dense deployment, which also results in low user throughput. In this paper, we propose a combined time domain and frequency domain novel idea for downlink interference control, which is via adaptive Discontinuous Reception (DRX) settings through Multi-Objective optimizations and an optimal carrier allocation scheme, respectively. The proposed idea mitigates the downlink co-channel interference by enabling intermittent data reception at the User Equipment (UE) through adaptive DRX settings, also it utilizes an effective carrier allocation scheme such that users are always allocated to carriers with least interference. The analytical model and simulation results reveal that the proposed idea achieves average gain of 3.5 times w.r.t cell throughput when compared with well-known downlink interference mitigation schemes.","PeriodicalId":248902,"journal":{"name":"2016 IEEE International Conference on Advanced Networks and Telecommunications Systems (ANTS)","volume":"115 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124707706","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

Cognitive radio adhoc vehicular network (CRAVENET): Architecture, applications, security requirements and challenges 认知无线自组织车辆网络(CRAVENET):架构、应用、安全需求和挑战

2016 IEEE International Conference on Advanced Networks and Telecommunications Systems (ANTS) Pub Date : 2016-11-01 DOI: 10.1109/ANTS.2016.7947842

Sachin Sharma, S. Mohan

引用次数: 9