2013, 7th International Conference on Signal Processing and Communication Systems (ICSPCS)最新文献_第9页

An iteratively tuned fuzzy logic movement model in WSN using particle swarm optimization 基于粒子群优化的WSN模糊逻辑运动迭代调谐模型

2013, 7th International Conference on Signal Processing and Communication Systems (ICSPCS) Pub Date : 1900-01-01 DOI: 10.1109/ICSPCS.2013.6723941

A. Rafiei, Y. Maali, M. Abolhasan, D. Franklin, Stephen Smith

{"title":"An iteratively tuned fuzzy logic movement model in WSN using particle swarm optimization","authors":"A. Rafiei, Y. Maali, M. Abolhasan, D. Franklin, Stephen Smith","doi":"10.1109/ICSPCS.2013.6723941","DOIUrl":"https://doi.org/10.1109/ICSPCS.2013.6723941","url":null,"abstract":"In contrast to adding new nodes, relocation of deployed nodes in mobile wireless sensor networks seems to be an effective solution to cope with undesirable, unpredictable and uncontrolled network topology changes due to nodes' drift and failure. At the price of less global control, there is a trend in recent years towards giving nodes more autonomy and devising localized relocation algorithms to address challenges of network topology control in harsh and hostile environments in the absence of centralized control. Inspired by laws of nature, a large variety of distributed node relocation algorithms have been designed to alleviate undesirable oscillations caused by local interactions and uncertainties among autonomous nodes as they reach their desired formations. Force-based distributed relocation algorithms governed by virtual push-pull forces among autonomous nodes are among such aforesaid algorithms. Adapting fuzzy logic model in exerting proper amount of forces to reduce node movement oscillation seems to be promising as its conforms well with uncertainties and interactions of autonomous nodes. However, parameters of fuzzy logic relocation model should be tuned so to enable nodes to exert proper amount of forces among their in-range neighbours. In this paper, by using particle swarm optimization, parameters of fuzzy relocation model are obtained based on the desired combinations of performance metrics within nodes' range in each movement iteration. The result shows that our model either outperforms or matches DSSA movement model.","PeriodicalId":294442,"journal":{"name":"2013, 7th International Conference on Signal Processing and Communication Systems (ICSPCS)","volume":"137 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115028645","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

Evaluation of caustics for parabolic reflector antennas through focal region ray tracings 用焦点区域射线追踪法评估抛物面反射器天线的焦散度

2013, 7th International Conference on Signal Processing and Communication Systems (ICSPCS) Pub Date : 1900-01-01 DOI: 10.1109/ICSPCS.2013.6723939

N. Rahman, M. Islam, N. Misran, Yoshihide Yamada, N. Michishita

引用次数: 2

A convolutional coded XOR physical layer network coding with unitary precoding in wireless bidirectional relay networks 一种无线双向中继网络中具有一元预编码的卷积编码异或物理层网络编码方法

2013, 7th International Conference on Signal Processing and Communication Systems (ICSPCS) Pub Date : 1900-01-01 DOI: 10.1109/ICSPCS.2013.6723957

S. Denno, D. Umehara

引用次数: 2

Joint design of user power allocation and relay beamforming in two-way MIMO relay networks 双向MIMO中继网络中用户功率分配与中继波束形成的联合设计

2013, 7th International Conference on Signal Processing and Communication Systems (ICSPCS) Pub Date : 1900-01-01 DOI: 10.1109/ICSPCS.2013.6723916

H. H. Kha, H. Tuan, Ha H. Nguyen, H. H. M. Tam

引用次数: 7

A packet age based LTE uplink packet scheduler for M2M traffic 基于分组年龄的LTE上行分组调度程序，用于M2M流量

2013, 7th International Conference on Signal Processing and Communication Systems (ICSPCS) Pub Date : 1900-01-01 DOI: 10.1109/ICSPCS.2013.6723987

Nusrat Afrin, Jason Brown, J. Khan

{"title":"A packet age based LTE uplink packet scheduler for M2M traffic","authors":"Nusrat Afrin, Jason Brown, J. Khan","doi":"10.1109/ICSPCS.2013.6723987","DOIUrl":"https://doi.org/10.1109/ICSPCS.2013.6723987","url":null,"abstract":"M2M applications exhibit a wide variety of QoS requirements, but many, particularly those associated with monitoring and/or control, are delay sensitive and therefore have specific packet delay budgets. One of the issues when supporting such delay sensitive M2M applications over a wide area cellular standard such as LTE is that the base station scheduling entity cannot precisely ascertain when pending uplink packets at devices were generated. This makes scheduling according to deadlines based upon packet delay budgets very challenging and ultimately involves some degree of error. In this paper, we propose a new delay sensitive scheduler that increases the probability of satisfying the delay budget of packets by exploiting Packet Age (PA) data explicitly reported by devices. The PA is a new MAC Control Element that represents the age of the oldest pending packet in the device buffers and is sent by devices in parallel with the existing Buffer Status Report (BSR) that contains volume and priority data. The overhead associated with the PA MAC control element is extremely small (2 bytes). We demonstrate the performance of the new technique with an OPNET simulation of an LTE TDD system serving event driven delay sensitive M2M traffic, comparing the results when PA reporting is enabled versus disabled for essentially the same uplink scheduling algorithm.","PeriodicalId":294442,"journal":{"name":"2013, 7th International Conference on Signal Processing and Communication Systems (ICSPCS)","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129970225","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: 6

An efficient channel estimation and tracking technique for Single Frequency Networks with SC-FDE modulations 一种有效的SC-FDE单频网络信道估计与跟踪技术

2013, 7th International Conference on Signal Processing and Communication Systems (ICSPCS) Pub Date : 1900-01-01 DOI: 10.1109/ICSPCS.2013.6723952

Fábio Silva, R. Dinis, P. Montezuma

引用次数: 0

Multi-objective Optimization (MOO) approach for sensor node placement in WSN 无线传感器网络中传感器节点放置的多目标优化方法

2013, 7th International Conference on Signal Processing and Communication Systems (ICSPCS) Pub Date : 1900-01-01 DOI: 10.1109/ICSPCS.2013.6723994

H. Z. Abidin, N. M. Din, Y. E. Jalil

{"title":"Multi-objective Optimization (MOO) approach for sensor node placement in WSN","authors":"H. Z. Abidin, N. M. Din, Y. E. Jalil","doi":"10.1109/ICSPCS.2013.6723994","DOIUrl":"https://doi.org/10.1109/ICSPCS.2013.6723994","url":null,"abstract":"It is desirable to position sensor nodes in a Wireless Sensor Network (WSN) to be able to provide maximum coverage with minimum energy consumption. However, these two aspects are contradicting and quite impossible to solve the placement problem with a single optimal decision. Thus, a Multi-objective Optimization (MOO) approach is needed to facilitate this. This paper studies the performance of a WSN sensor node placement problem solved with a new biologically inspired optimization technique that imitates the behavior of territorial predators in marking their territories with their odours known as Territorial Predator Scent Marking Algorithm (TPSMA). The simulation study is done for a single objective and multi-objective approaches. The MOO approach of TPSMA (MOTPSMA) deployed in this paper uses the minimum energy consumption and maximum coverage as the objective functions while the single objective approach TPSMA only considers maximum coverage. The performance of both approaches is then compared in terms of coverage ratio and total energy consumption. Simulation results show that the WSN deployed with the MOTPSMA is able to reduce the energy consumption although the coverage ratio is slightly lower than single approach TPSMA which only focuses on maximizing the coverage.","PeriodicalId":294442,"journal":{"name":"2013, 7th International Conference on Signal Processing and Communication Systems (ICSPCS)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122853055","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

Optimized linear precoder in MIMO interference channel using D.C. programming 用直流编程优化MIMO干扰信道的线性预编码器

2013, 7th International Conference on Signal Processing and Communication Systems (ICSPCS) Pub Date : 1900-01-01 DOI: 10.1109/ICSPCS.2013.6723961

H. H. M. Tam, E. Che, H. Tuan

引用次数: 4

Robust far-end channel estimation design for MIMO relay systems MIMO中继系统的鲁棒远端信道估计设计

2013, 7th International Conference on Signal Processing and Communication Systems (ICSPCS) Pub Date : 1900-01-01 DOI: 10.1109/ICSPCS.2013.6723954

F. Tseng, Wan-Jen Huang, Wen-Rong Wu

{"title":"Robust far-end channel estimation design for MIMO relay systems","authors":"F. Tseng, Wan-Jen Huang, Wen-Rong Wu","doi":"10.1109/ICSPCS.2013.6723954","DOIUrl":"https://doi.org/10.1109/ICSPCS.2013.6723954","url":null,"abstract":"In this paper, we propose a robust far-end channel estimation for a multiple-input multiple-output (MIMO) relay system, where channel estimation is accomplished in two phases. In the first phase, the relay-to-destination channel is estimated. In the second phase, the destination estimate the far-end channel, i.e., the source-to-relay link, based on the source pilots, relay precoder, and the estimated channel in the first phase. This work aims to conduct a robust design by deriving the optimum source pilots and relay precoder according to the minimum mean-squared error (MMSE) criterion. Although the optimization problem can be formulated mathematically; however, the problem is not convex and difficult to be solved. Thus, we replace the objective function with its lower bound, and simplify the matrix optimization problem as a scalar-convex optimization. We show that the optimum solution of the optimization with the lower bound equals to that of the original problem when the channel correlation matrices satisfy certain structures. Simulations show that our proposed method outperforms existing non-robust methods.","PeriodicalId":294442,"journal":{"name":"2013, 7th International Conference on Signal Processing and Communication Systems (ICSPCS)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128180677","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: 1

Measurement and time dispersion analysis of UWB channels for Infostation application in an outdoor recreation park 户外休闲公园信息站UWB信道的测量与时间色散分析

2013, 7th International Conference on Signal Processing and Communication Systems (ICSPCS) Pub Date : 1900-01-01 DOI: 10.1109/ICSPCS.2013.6723911

U. Chude-Okonkwo, R. Ngah, S. Nunoo, Y. Zahedi, Chollette C. Chude-Olisah, Ahmed M. Al-Saman, T. A. Rahman

引用次数: 0