2015 IEEE 26th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)最新文献_第9页

PAPR reduction of OFDM through pilot shifting 通过导频移位降低OFDM的PAPR

2015 IEEE 26th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC) Pub Date : 2015-12-03 DOI: 10.1109/PIMRC.2015.7343272

Md. Sakir Hossain, T. Shimamura

引用次数: 1

Resource management schemes for network assisted device-to-device communication for an integrated OFDMA cellular system 用于集成OFDMA蜂窝系统的网络辅助设备对设备通信的资源管理方案

2015 IEEE 26th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC) Pub Date : 2015-12-03 DOI: 10.1109/PIMRC.2015.7343539

Hongnian Xing, M. Renfors

引用次数: 6

Reliable feedback generation in unsynchronized joint-processing CoMP transmission networks 非同步联合处理CoMP传输网络的可靠反馈生成

2015 IEEE 26th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC) Pub Date : 2015-12-03 DOI: 10.1109/PIMRC.2015.7343429

Stanislaus Iwelski, Erfan Majeed, Z. Bai, G. Bruck, P. Jung

{"title":"Reliable feedback generation in unsynchronized joint-processing CoMP transmission networks","authors":"Stanislaus Iwelski, Erfan Majeed, Z. Bai, G. Bruck, P. Jung","doi":"10.1109/PIMRC.2015.7343429","DOIUrl":"https://doi.org/10.1109/PIMRC.2015.7343429","url":null,"abstract":"Coordinated multipoint (CoMP) transmission is a key technique in 4G long term evolution (LTE) systems to provide the ubiquitous broadband communication with cell edge free experience at the user equipment (UE). However, as the transmit signals will reach the UE at several and varying delays, practical CoMP networks might experience large timing offsets (TOs), imposing a significant performance loss. In this paper we focus on implicit feedback generation for practical CoMP joint processing (JP)-joint transmission (JT) networks suffering from TOs. We show that conventional implicit feedback schemes prohibit the expected gain in the downlink, getting outperformed by open-loop transmission schemes and call the benefits of channel state information (CSI) feedback for CoMP JP-JT networks into question. Analytically we prove that the mapping of CSI-reference signal (RS) on different subcarriers imposes multiple phase offsets on the covariance matrix, leading to improper precoding vector selection, while imbalanced TOs among the transmitters limit coherent signal demodulation at the UE. With numerical results we show that estimating and compensating the phase offsets reliable precoding vector selection and phase feedback for coherent signal demodulation can be obtained and as a result considerable improvements for practical CoMP JP-JT networks can be achieved in presence of varying TOs.","PeriodicalId":274734,"journal":{"name":"2015 IEEE 26th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127727573","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

Algorithm of protocol header recovery based on iteration between layers 基于层间迭代的协议头恢复算法

2015 IEEE 26th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC) Pub Date : 2015-12-03 DOI: 10.1109/PIMRC.2015.7343492

Liang Fan, Xiaomei Wang, Yan Chen

引用次数: 0

Repeater-enhanced millimeter-wave systems in multi-path environments 多径环境下中继器增强毫米波系统

2015 IEEE 26th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC) Pub Date : 2015-12-03 DOI: 10.1109/PIMRC.2015.7343401

Junyang Shen, Dengkui Zhu, Boyu Li, Ping Liang

{"title":"Repeater-enhanced millimeter-wave systems in multi-path environments","authors":"Junyang Shen, Dengkui Zhu, Boyu Li, Ping Liang","doi":"10.1109/PIMRC.2015.7343401","DOIUrl":"https://doi.org/10.1109/PIMRC.2015.7343401","url":null,"abstract":"The millimeter Wave (mmWave) is considered as a promising technology of the future fifth-generation wireless systems due to the currently underutilized multi-GHz spectrum surrounding the 60GHz carrier frequency, particularly with the recent advances in low cost sub-terahertz semiconductor circuitry. Since the mmWave suffers high attenuation during transmission, the repeater is a key technique to enable mmWave systems with seamless coverage. This paper considers the following practical design issues of Amplified-and-Forward Repeater (AFR) enhanced mmWave systems. First, the distribution of excess delay through multiple AFR hops is derived, which helps the design of cyclic-prefix length to avoid inter-symbol interference in orthogonal frequency division multiplexing systems. In addition, we show that the AFR decreases the channel coherence bandwidth and then propose a novel AFR design with a finite impulse response filter based channel equalizer to address this problem. Simulation results show that the proposed method is able to significantly increase channel coherence bandwidth and effectively reduce bit error rate.","PeriodicalId":274734,"journal":{"name":"2015 IEEE 26th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128932502","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

Joint weighted bit-flipping decoder for use in diversity network coding 用于分集网络编码的联合加权位翻转解码器

2015 IEEE 26th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC) Pub Date : 2015-12-03 DOI: 10.1109/PIMRC.2015.7343279

Heather King, M. Flanagan

引用次数: 0

A resource management scheme for hybrid access femtocells in LTE/LTE-A networks LTE/LTE-A混合接入飞基站资源管理方案

2015 IEEE 26th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC) Pub Date : 2015-12-03 DOI: 10.1109/PIMRC.2015.7343474

Ying Loong Lee, J. Loo, T. Chuah

{"title":"A resource management scheme for hybrid access femtocells in LTE/LTE-A networks","authors":"Ying Loong Lee, J. Loo, T. Chuah","doi":"10.1109/PIMRC.2015.7343474","DOIUrl":"https://doi.org/10.1109/PIMRC.2015.7343474","url":null,"abstract":"In Long Term Evolution (LTE)/LTE-Advanced (LTE-A) networks, hybrid access femtocells have been introduced as a tradeoff between closed and open access femtocells. However, quality of service (QoS) provisioning in hybrid access femtocells has become more challenging due to different user priority and traffic classes. Existing studies do not consider the LTE/LTE-A protocols and QoS priority of different traffic classes. In this work, a resource management scheme for prioritizing closed subscriber group (CSG) members and QoS provisioning in LTE/LTE-A hybrid access femtocells is proposed. Firstly, an admission control problem and a packet scheduling problem, which account for different user priority and QoS of different traffic classes, are formulated. A lexicographic greedy algorithm and a delay-prioritized scheduling algorithm are proposed to solve the two problems respectively. Simulation results show that the proposed scheme achieves a substantial performance gain in terms of packet loss and fairness for real-time traffic flows, albeit at the cost of lower fairness for non-real-time traffic flows.","PeriodicalId":274734,"journal":{"name":"2015 IEEE 26th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117021625","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

Cell and user virtualization for ultra dense network 超密集网络的小区和用户虚拟化

2015 IEEE 26th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC) Pub Date : 2015-12-03 DOI: 10.1109/PIMRC.2015.7343693

Yu-Ngok Ruyue Li, Peng Hao, Feng Xie, Huahua Xiao, Min Ren

引用次数: 9

Overview of MAC protocols for energy harvesting wireless sensor networks 能量收集无线传感器网络的MAC协议概述

2015 IEEE 26th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC) Pub Date : 2015-12-03 DOI: 10.1109/PIMRC.2015.7343632

Parisa Ramezani, Mohammadreza Pakravan

{"title":"Overview of MAC protocols for energy harvesting wireless sensor networks","authors":"Parisa Ramezani, Mohammadreza Pakravan","doi":"10.1109/PIMRC.2015.7343632","DOIUrl":"https://doi.org/10.1109/PIMRC.2015.7343632","url":null,"abstract":"Wireless Sensor Networks (WSNs) have been weaved into the fabric of our daily lives. The foremost impediment in the rapid development of these networks is the energy limitation which inhibits them from meeting specific application requirements. Recently, the advances in energy harvesting technology have made it possible to replenish the energy of sensors via external sources. Energy Harvesting-Wireless Sensor Networks (EH-WSNs) are being transformed from a visionary concept into reality. However, this concept is still in its infancy and calls for extensive research to cater to the needs of WSNs. For future progress of EH-WSNs, Medium Access Control (MAC) layer has undoubtedly a decisive role to play. A well-designed MAC protocol can manage the channel access in such a way that the harvested energy is utilized efficiently and the performance is maximized. Due to the importance of medium access control in EH-WSNs, in this paper, we concentrate on the design aspects of MAC protocols for energy harvesting sensor networks. We introduce the characteristics of a properly-designed MAC protocol for EH-WSNs and provide a survey on MAC protocols which have been explicitly designed for energy harvesting sensor networks. We elaborate the advantages and disadvantages of each protocol, wishing to help future designers to learn from the merits and demerits of the existing ideas and propose a more robust solution which can be seamlessly integrated into WSNs.","PeriodicalId":274734,"journal":{"name":"2015 IEEE 26th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114319964","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: 24

Hybrid information forwarding in VANETs through named data networking VANETs中通过命名数据网络的混合信息转发

2015 IEEE 26th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC) Pub Date : 2015-12-03 DOI: 10.1109/PIMRC.2015.7343616

Gang Deng, Xiaoming Xie, Li Shi, Rere Li

{"title":"Hybrid information forwarding in VANETs through named data networking","authors":"Gang Deng, Xiaoming Xie, Li Shi, Rere Li","doi":"10.1109/PIMRC.2015.7343616","DOIUrl":"https://doi.org/10.1109/PIMRC.2015.7343616","url":null,"abstract":"This paper investigates the issue of multi-hop forwarding in Vehicular Ad hoc Networks (VANETs), which is suffering from rapidly changing topology, short-lived and intermittent connectivity. Designed to replace TCP/IP using named data, Named Data Networking (NDN) has natural advantages to greatly overcome those challenges because of its multi-source and in-network caching characteristics. However, in the wireless environment the Interest and Data, proposed in NDN, are usually flooded because of the absence of Forwarding Information Base (FIB). To tackle this problem, we propose HVNDN, a hybrid forwarding strategy through NDN. More specifically, HVNDN introduces opportunistic and probabilistic forwarding strategy for location-dependent and location-independent information, respectively, which takes full advantage of geographic information and the characteristics of named data in VANETs. To make Vehicle-to-Vehicle (V2V) communication more effective and reliable, we design elaborate Interest and Data packets formats, retransmission and acknowledgement mechanism in HVNDN. Simulation results from NS-3 demonstrate that the proposed forwarding strategy outperforms the state-of-art scheme with less end-to-end delay and overhead.","PeriodicalId":274734,"journal":{"name":"2015 IEEE 26th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114324734","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