2014 IEEE Global Communications Conference最新文献_第8页

A variable-length channel quantizer for multicast networks with two users 可变长度信道量化器，用于双用户组播网络

2014 IEEE Global Communications Conference Pub Date : 2014-12-01 DOI: 10.1109/GLOCOM.2014.7037350

X. Liu, Erdem Koyuncu, H. Jafarkhani

引用次数: 0

Experimental study of concurrent data and wireless energy transfer for sensor networks 传感器网络并发数据和无线能量传输的实验研究

2014 IEEE Global Communications Conference Pub Date : 2014-12-01 DOI: 10.1109/GLOCOM.2014.7037190

M. Naderi, K. Chowdhury, S. Basagni, W. Heinzelman, S. De, S. Jana

引用次数: 57

Distinguishing uncertain objects with multiple features for crowdsensing 基于多特征的人群感知不确定目标识别

2014 IEEE Global Communications Conference Pub Date : 2014-12-01 DOI: 10.1109/GLOCOM.2014.7037224

Bin Liu, Chao Song, Ming Liu, Nianbo Liu

引用次数: 1

Widely linear sphere decoding by exploiting the hidden properties of PSK signals 利用PSK信号的隐藏特性实现宽线性球解码

2014 IEEE Global Communications Conference Pub Date : 2014-12-01 DOI: 10.1109/GLOCOM.2014.7037300

Yuehua Ding, Nanxi Li, Yide Wang, Suili Feng

{"title":"Widely linear sphere decoding by exploiting the hidden properties of PSK signals","authors":"Yuehua Ding, Nanxi Li, Yide Wang, Suili Feng","doi":"10.1109/GLOCOM.2014.7037300","DOIUrl":"https://doi.org/10.1109/GLOCOM.2014.7037300","url":null,"abstract":"Widely linear processing (WLP) can provide attractive performance improvement in wireless communication systems. However, performance improvement brought by WLP is mainly achieved by exploiting signal's non-circularity, which leads to the fact that existing works on WLP are mainly confined to the cases related to non circular signals or improper signals with imbalanced I/Q components. In this paper, WLP for circular signals, such as PSK signals, is investigated by exploiting the hidden properties of PSK signals. The hidden properties of PSK signals are firstly studied, and a unified mathematical model is derived to describe the hidden properties of PSK signals. Furthermore, a widely linear sphere decoding (WLSD) algorithm exploiting PSK signals' hidden properties is proposed for MIMO systems. Compared to traditional sphere decoding (SD), WLSD has little performance loss, and it transforms the traditional SD searching for the true transmitted vector into the shrunk searching for the corresponding rotation vector, the candidate rotation vectors of WLSD are only (1/2)NT of SD candidate vectors. Simulation results show that the proposed algorithm can achieve quasi-optimal BER performance, while the computational complexity is significantly reduced by more than a half compared with Schnorr-Euchner sphere decoder.","PeriodicalId":6492,"journal":{"name":"2014 IEEE Global Communications Conference","volume":"50 1","pages":"3209-3214"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88510053","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

Extending volunteer computing through mobile ad hoc networking 通过移动自组织网络扩展志愿者计算

2014 IEEE Global Communications Conference Pub Date : 2014-12-01 DOI: 10.1109/GLOCOM.2014.7036780

C. Funai, C. Tapparello, He Ba, Bora Karaoglu, W. Heinzelman

{"title":"Extending volunteer computing through mobile ad hoc networking","authors":"C. Funai, C. Tapparello, He Ba, Bora Karaoglu, W. Heinzelman","doi":"10.1109/GLOCOM.2014.7036780","DOIUrl":"https://doi.org/10.1109/GLOCOM.2014.7036780","url":null,"abstract":"Volunteer computing provides a practical and low cost solution to the increasing computational demands of many applications. Recent advancements in mobile device processing capabilities, combined with the energy efficiency of the mobile devices, make their inclusion in a distributed computing architecture particularly appealing. However, the intrinsic requirement of Internet connectivity to participate in volunteer computing limits the direct adoption of mobile devices due to service availability or related costs to connect to the Internet. In this paper, we propose and implement a novel computational architecture that extends the ability of mobile devices to participate in volunteer computing through ad hoc networking. By introducing decentralized task distribution points, mobile devices are invited to join the computation via device to device communication, removing the requirement for an Internet connection. Using a prototype implementation running on Android devices, we investigate the impact of a promising ad hoc communication technology, namely WiFi Direct, and two task distribution algorithms with different computation and communication overheads, under various scenarios. Experimental results show that our proposed approach is feasible with only minor additional energy consumption at the decentralized task distribution points.","PeriodicalId":6492,"journal":{"name":"2014 IEEE Global Communications Conference","volume":"42 1","pages":"32-38"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88548671","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: 26

Performance analysis of multiuser 2-hop systems with random placement of relay nodes 随机中继节点布置的多用户2跳系统性能分析

2014 IEEE Global Communications Conference Pub Date : 2014-12-01 DOI: 10.1109/GLOCOM.2014.7037462

A. Zanella, A. Bazzi, B. Masini, G. Pasolini

引用次数: 5

Achievable rates for uplink communications in LTE-advanced networks with decode-and-forward relays 具有解码转发中继的lte高级网络中上行通信的可实现速率

2014 IEEE Global Communications Conference Pub Date : 2014-12-01 DOI: 10.1109/GLOCOM.2014.7037461

Xiaoxiao Zhang, Xuemin Shen, Liang-Liang Xie

引用次数: 2

Balancing traffic load for devolved controllers in data center networks 数据中心网络中分散控制器的流量负载均衡

2014 IEEE Global Communications Conference Pub Date : 2014-12-01 DOI: 10.1109/GLOCOM.2014.7037144

Wanchao Liang, Xiaofeng Gao, Fan Wu, Guihai Clien, Wei Wei

引用次数: 11

Feasibility of a TV whitespaces enabled broadband network for high-speed trains 高速列车电视空白宽带网络的可行性

2014 IEEE Global Communications Conference Pub Date : 2014-12-01 DOI: 10.1109/GLOCOM.2014.7036932

Andreas Achtzehn, Dominik Deling, M. Petrova

引用次数: 5

Low power synchronization design for large bandwidth wireless LAN systems 大带宽无线局域网系统的低功耗同步设计

2014 IEEE Global Communications Conference Pub Date : 2014-12-01 DOI: 10.1109/GLOCOM.2014.7037336

S. Rajagopal, S. Abu-Surra, Eran Pisek

{"title":"Low power synchronization design for large bandwidth wireless LAN systems","authors":"S. Rajagopal, S. Abu-Surra, Eran Pisek","doi":"10.1109/GLOCOM.2014.7037336","DOIUrl":"https://doi.org/10.1109/GLOCOM.2014.7037336","url":null,"abstract":"Wireless LAN systems have been continuously evolving to provide ~10X increase in data rates every five years, exploiting higher mmWave frequencies and larger bandwidths, such as IEEE 802.11ad, providing 6.76 Gb/s using 2.16 GHz of bandwidth at 60 GHz. One of the key technical challenges to successful commercialization of these large bandwidth systems is power consumption. In this paper, we focus on reducing the idle listening mode power consumption where the device is actively looking for packets and the power consumption is dominated by the high speed ADCs. We propose a low power and bandwidth-scalable synchronization design for large bandwidth systems by developing reduced bandwidth modes in high-speed ADCs used in such systems. We study the impact of the proposed synchronization design on the detection probability, false alarm, AGC design and symbol timing estimation. Comparisons of our design using a bandwidth reduction of 4 with the existing IEEE 802. Had synchronization design show no loss in AWGN and a 0.8 dB loss in fading for an equivalent acquisition time and false alarm rate while providing a 33% power reduction in idle mode, assuming the ADCs consume 50% of the total idle power consumption. We also provide backward compatibility with current IEEE 802.11ad systems with limited impact on performance and power consumption.","PeriodicalId":6492,"journal":{"name":"2014 IEEE Global Communications Conference","volume":"54 1","pages":"3418-3423"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90820853","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: 3