Pub Date : 2011-12-08DOI: 10.1109/ATNAC.2011.6096668
A. Kist
Experience related performance measures are important for operational, commercial as well as usability reasons. Quality of Experience (QoE) is widely discussed as a measure of user perceived performance, no universal definition for QoE are available. Instead of moulding QoE into a one-fits-all parameter, this work identifies and defines four specific performance measures that are more descriptive than traditional QoE. They account for objective and subjective measures and focus on applications and tasks specific performance. The parameters include Quality of (an) Application (QoA) and Quality of Use (QoU). They are further divided into objective and subjective measures, i.e. objective QoA, subjective QoA, objective QoU and subjective QoU. Subjective QoA reassembles QoE widely discussed in technical literature; QoU provides a measure for quality of experience in a more general, non technical sense. It is proposed that these individual performance parameters provide a better picture of performance and allow stakeholders to make more specific decisions. The paper also introduces a set of sample performance evaluations for the Remote Access Laboratories application to demonstrate how this framework can be applied and how such parameters can be measured.
与体验相关的性能度量对于操作、商业和可用性都很重要。体验质量(Quality of Experience, QoE)作为用户感知性能的度量被广泛讨论，但目前还没有关于QoE的通用定义。这项工作没有将QoE塑造成一个放之四海而皆准的参数，而是确定并定义了四种比传统QoE更具描述性的具体性能度量。它们考虑了客观和主观的度量，并侧重于应用程序和任务的具体性能。参数包括QoA (Quality of an Application)和QoU (Quality of Use)。它们又分为客观和主观度量，即客观质量质量评价、主观质量质量评价、客观质量质量评价和主观质量质量评价。主观质量评价对技术文献中广泛讨论的质量评价进行了重组;QoU提供了一种更一般的、非技术意义上的体验质量度量。建议这些单独的绩效参数提供了更好的绩效图景，并允许利益相关者做出更具体的决策。本文还介绍了远程访问实验室应用程序的一组示例性能评估，以演示如何应用该框架以及如何测量这些参数。
{"title":"A framework to evaluate performance from an application and user perspective","authors":"A. Kist","doi":"10.1109/ATNAC.2011.6096668","DOIUrl":"https://doi.org/10.1109/ATNAC.2011.6096668","url":null,"abstract":"Experience related performance measures are important for operational, commercial as well as usability reasons. Quality of Experience (QoE) is widely discussed as a measure of user perceived performance, no universal definition for QoE are available. Instead of moulding QoE into a one-fits-all parameter, this work identifies and defines four specific performance measures that are more descriptive than traditional QoE. They account for objective and subjective measures and focus on applications and tasks specific performance. The parameters include Quality of (an) Application (QoA) and Quality of Use (QoU). They are further divided into objective and subjective measures, i.e. objective QoA, subjective QoA, objective QoU and subjective QoU. Subjective QoA reassembles QoE widely discussed in technical literature; QoU provides a measure for quality of experience in a more general, non technical sense. It is proposed that these individual performance parameters provide a better picture of performance and allow stakeholders to make more specific decisions. The paper also introduces a set of sample performance evaluations for the Remote Access Laboratories application to demonstrate how this framework can be applied and how such parameters can be measured.","PeriodicalId":210916,"journal":{"name":"2011 Australasian Telecommunication Networks and Applications Conference (ATNAC)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114600729","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}
Pub Date : 2011-12-08DOI: 10.1109/ATNAC.2011.6096649
Sohil Mahajan, A. Jagannatham
In this work we propose novel algorithms for singular mode diversity order based optimal power allocation for video transmission in Multiple-Input Multiple-Output (MIMO) wireless systems. We motivate a discrete wavelet transform (DWT) and hierarchical block motion estimation algorithm (HBMA) based spatio-temporal video decomposition that is naturally suited to the ordering and diversity properties of the MIMO channel singular modes for video layer allocation. Based on this paradigm, we propose a framework for the MIMO singular value decomposition (SVD) based optimal power allocation, specifically for the context of MIMO video transmission. Further, we consider a practical MIMO scenario with channel state information (CSI) available only at the receiver and employ a codebook based limited feedback technique to feedback the index of the quantized beamforming vector. This significantly reduces the communication overhead on the reverse link of the wireless system. We demonstrate that the proposed hierarchical video decomposition based optimal diversity power allocation employing limited CSI feedback can be formulated as a constrained optimization problem. Subsequently, it is demonstrated that the solution to this problem can be computed by solving an iterative sequence of convex cost minimization problems. A closed form expression for the optimal power allocation is presented for the convex optimization problem at each iterative step. Simulation results demonstrate significant performance improvement of the proposed optimal power allocation schemes over the suboptimal equal power allocation scheme.
{"title":"Hierarchical DWT based optimal diversity power allocation for video transmission in MIMO wireless systems with quantized feedback","authors":"Sohil Mahajan, A. Jagannatham","doi":"10.1109/ATNAC.2011.6096649","DOIUrl":"https://doi.org/10.1109/ATNAC.2011.6096649","url":null,"abstract":"In this work we propose novel algorithms for singular mode diversity order based optimal power allocation for video transmission in Multiple-Input Multiple-Output (MIMO) wireless systems. We motivate a discrete wavelet transform (DWT) and hierarchical block motion estimation algorithm (HBMA) based spatio-temporal video decomposition that is naturally suited to the ordering and diversity properties of the MIMO channel singular modes for video layer allocation. Based on this paradigm, we propose a framework for the MIMO singular value decomposition (SVD) based optimal power allocation, specifically for the context of MIMO video transmission. Further, we consider a practical MIMO scenario with channel state information (CSI) available only at the receiver and employ a codebook based limited feedback technique to feedback the index of the quantized beamforming vector. This significantly reduces the communication overhead on the reverse link of the wireless system. We demonstrate that the proposed hierarchical video decomposition based optimal diversity power allocation employing limited CSI feedback can be formulated as a constrained optimization problem. Subsequently, it is demonstrated that the solution to this problem can be computed by solving an iterative sequence of convex cost minimization problems. A closed form expression for the optimal power allocation is presented for the convex optimization problem at each iterative step. Simulation results demonstrate significant performance improvement of the proposed optimal power allocation schemes over the suboptimal equal power allocation scheme.","PeriodicalId":210916,"journal":{"name":"2011 Australasian Telecommunication Networks and Applications Conference (ATNAC)","volume":"C-18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126765038","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}
Pub Date : 2011-12-08DOI: 10.1109/ATNAC.2011.6096663
S. Misra, Ashim Ghosh
The field of Underwater Sensor Networks attempts to set up a Wireless Sensor Network (WSN) underwater for the purpose of exploration and monitoring by addressing challenges unique to the oceanic environment. In an UnderWater Sensor Network (UWSN), the knowledge of the location of a node can both improve the operation of the network (e.g. geographical routing) and add significance to the data that is collected. Many localization techniques used in UWSN are based on multilateration. Multilateration assumes the underwater speed of sound to be constant. However, several studies have shown that this speed varies with salinity, temperature and pressure. This variation incorporates an error into the results obtained from localisation. This paper presents an algorithm to find an estimate of the underwater speed of sound at a particular location and time. This estimate can be provided to multilateration to improve the localization accuracy. The existing multilateration technique need not be modified. Simulation studies show that our algorithm improves the localization accuracy over a pure multilateration technique that assumes the underwater speed of sound to be 1500 m/s.
{"title":"The effects of variable sound speed on localization in Underwater Sensor Networks","authors":"S. Misra, Ashim Ghosh","doi":"10.1109/ATNAC.2011.6096663","DOIUrl":"https://doi.org/10.1109/ATNAC.2011.6096663","url":null,"abstract":"The field of Underwater Sensor Networks attempts to set up a Wireless Sensor Network (WSN) underwater for the purpose of exploration and monitoring by addressing challenges unique to the oceanic environment. In an UnderWater Sensor Network (UWSN), the knowledge of the location of a node can both improve the operation of the network (e.g. geographical routing) and add significance to the data that is collected. Many localization techniques used in UWSN are based on multilateration. Multilateration assumes the underwater speed of sound to be constant. However, several studies have shown that this speed varies with salinity, temperature and pressure. This variation incorporates an error into the results obtained from localisation. This paper presents an algorithm to find an estimate of the underwater speed of sound at a particular location and time. This estimate can be provided to multilateration to improve the localization accuracy. The existing multilateration technique need not be modified. Simulation studies show that our algorithm improves the localization accuracy over a pure multilateration technique that assumes the underwater speed of sound to be 1500 m/s.","PeriodicalId":210916,"journal":{"name":"2011 Australasian Telecommunication Networks and Applications Conference (ATNAC)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132277239","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}
Pub Date : 2011-12-08DOI: 10.1109/ATNAC.2011.6096671
P. Sofotasios, S. Freear
This work is devoted to the formulation and derivation of the η — µ/gamma and λ — µ/gamma distributions which correspond to physical fading models. These distributions are composite and are based on the η — µ and λ — µ generalized multipath models, respectively, and the gamma shadowing model. Novel analytic expressions are derived for the corresponding envelope probability density functions. Importantly, the proposed models provide accurate characterisation of the simultaneous occurrence of multipath fading and shadowing effects which is achieved thanks to the remarkable flexibility offered by their parameters that render them capable of providing good fittings to experimental data associated with realistic communication scenarios. This is additionally justified by the fact that they include as special cases the widely known fading models such as Hoyt/gamma, Nakagami-m/gamma and Rayleigh/gamma. As a result, they can be meaningfully utilized in various analytical studies related to the performance evaluation of digital communications over composite multipath/shadowing fading channels.
{"title":"On the η-µ/gamma and the λ-µ/gamma multipath/shadowing distributions","authors":"P. Sofotasios, S. Freear","doi":"10.1109/ATNAC.2011.6096671","DOIUrl":"https://doi.org/10.1109/ATNAC.2011.6096671","url":null,"abstract":"This work is devoted to the formulation and derivation of the η — µ/gamma and λ — µ/gamma distributions which correspond to physical fading models. These distributions are composite and are based on the η — µ and λ — µ generalized multipath models, respectively, and the gamma shadowing model. Novel analytic expressions are derived for the corresponding envelope probability density functions. Importantly, the proposed models provide accurate characterisation of the simultaneous occurrence of multipath fading and shadowing effects which is achieved thanks to the remarkable flexibility offered by their parameters that render them capable of providing good fittings to experimental data associated with realistic communication scenarios. This is additionally justified by the fact that they include as special cases the widely known fading models such as Hoyt/gamma, Nakagami-m/gamma and Rayleigh/gamma. As a result, they can be meaningfully utilized in various analytical studies related to the performance evaluation of digital communications over composite multipath/shadowing fading channels.","PeriodicalId":210916,"journal":{"name":"2011 Australasian Telecommunication Networks and Applications Conference (ATNAC)","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130031841","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}
Pub Date : 2011-12-08DOI: 10.1109/ATNAC.2011.6096645
S. Wijetunge, U. Gunawardana, R. Liyanapathirana
IEEE 802.15.4 medium access control (MAC) specifications support an optional feature of MAC-level acknowledgements and frame retransmissions to ensure reliability in data transmission. In this paper, we propose a generalised analytical model, which is based on a three-dimensional, discrete-time Markov chain, to analyse the performance of the IEEE 802.15.4 MAC protocol with retransmission and MAC-level acknowledgements under unsaturated traffic conditions. The network performance is evaluated in terms of aggregate throughput, average power consumption of a node, frame discard ratio and frame delivery ratio. Based on our results, we discuss the impact of different MAC parameters on the performance of the network.
{"title":"Impact of MAC parameters on the performance of IEEE 802.15.4 MAC protocol with ACK frame transmission","authors":"S. Wijetunge, U. Gunawardana, R. Liyanapathirana","doi":"10.1109/ATNAC.2011.6096645","DOIUrl":"https://doi.org/10.1109/ATNAC.2011.6096645","url":null,"abstract":"IEEE 802.15.4 medium access control (MAC) specifications support an optional feature of MAC-level acknowledgements and frame retransmissions to ensure reliability in data transmission. In this paper, we propose a generalised analytical model, which is based on a three-dimensional, discrete-time Markov chain, to analyse the performance of the IEEE 802.15.4 MAC protocol with retransmission and MAC-level acknowledgements under unsaturated traffic conditions. The network performance is evaluated in terms of aggregate throughput, average power consumption of a node, frame discard ratio and frame delivery ratio. Based on our results, we discuss the impact of different MAC parameters on the performance of the network.","PeriodicalId":210916,"journal":{"name":"2011 Australasian Telecommunication Networks and Applications Conference (ATNAC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133701269","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}
Pub Date : 2011-12-08DOI: 10.1109/ATNAC.2011.6096675
A. Hassan, A. Hoque, A. Moldsvor
Telecommunication has seen extensive evolution in last couple of decades and MW links have been devised to ensure transmission links of high data rates and to ensure Quality of Service (QoS). MW antenna used in communication systems is regularly affected by environmental factor and generally by wear and tear of mounts. These factors cause the optimally directed antennas to be perturbed from respective main lobes. An automated antenna alignment that works without human intervention can decrease the down time and ensure a reliable communication between the near and far end terminals of the Base Transceiver Station (BTS). Results are presented to indicate antenna alignment in time optimal manner.
{"title":"Automated Micro-Wave(MW) antenna alignment of Base Transceiver Stations: Time optimal link alignment","authors":"A. Hassan, A. Hoque, A. Moldsvor","doi":"10.1109/ATNAC.2011.6096675","DOIUrl":"https://doi.org/10.1109/ATNAC.2011.6096675","url":null,"abstract":"Telecommunication has seen extensive evolution in last couple of decades and MW links have been devised to ensure transmission links of high data rates and to ensure Quality of Service (QoS). MW antenna used in communication systems is regularly affected by environmental factor and generally by wear and tear of mounts. These factors cause the optimally directed antennas to be perturbed from respective main lobes. An automated antenna alignment that works without human intervention can decrease the down time and ensure a reliable communication between the near and far end terminals of the Base Transceiver Station (BTS). Results are presented to indicate antenna alignment in time optimal manner.","PeriodicalId":210916,"journal":{"name":"2011 Australasian Telecommunication Networks and Applications Conference (ATNAC)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129446785","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}
Pub Date : 2011-12-08DOI: 10.1109/ATNAC.2011.6096631
Y. Nomoto, Tomonori Kuzukawa, Y. Ishibashi
There are few studies of content delivery systems specializing in consumer generated video (CGV) exchange, and as for the real exchange technique, exchange through the file server in a network has become mainstream. A solution using P2P has been also proposed, but a structure for safe content exchange guaranteed by the service provider is necessary for the further spread of a service. Therefore, we propose a distributed storage video on demand system (DSVS) for delivering CGV content stored in a user IP storage. It is important to know how the server in a network manages stored CGV(s), including the storage. A standard system for managing the storage and also the stored files does not exist. Thus, we propose a storage management system, a part of our DSVS, that uses a session initiation protocol presence function and an XML database management system. These are additional functions of the IP multimedia subsystem, which is a core system of the next generation network (NGN). In Japan, access services for the IPv6 Internet and an NGN with one IPv6 address began in 2011. Therefore, the number of potential NGN users will increase with the spread of the IPv6 Internet access service. We show that our system can become the foundation of various content delivery services due to the versatility of the storage management capability of our DSVS.
{"title":"IP storage and stored content management using SIP presence server with XML database","authors":"Y. Nomoto, Tomonori Kuzukawa, Y. Ishibashi","doi":"10.1109/ATNAC.2011.6096631","DOIUrl":"https://doi.org/10.1109/ATNAC.2011.6096631","url":null,"abstract":"There are few studies of content delivery systems specializing in consumer generated video (CGV) exchange, and as for the real exchange technique, exchange through the file server in a network has become mainstream. A solution using P2P has been also proposed, but a structure for safe content exchange guaranteed by the service provider is necessary for the further spread of a service. Therefore, we propose a distributed storage video on demand system (DSVS) for delivering CGV content stored in a user IP storage. It is important to know how the server in a network manages stored CGV(s), including the storage. A standard system for managing the storage and also the stored files does not exist. Thus, we propose a storage management system, a part of our DSVS, that uses a session initiation protocol presence function and an XML database management system. These are additional functions of the IP multimedia subsystem, which is a core system of the next generation network (NGN). In Japan, access services for the IPv6 Internet and an NGN with one IPv6 address began in 2011. Therefore, the number of potential NGN users will increase with the spread of the IPv6 Internet access service. We show that our system can become the foundation of various content delivery services due to the versatility of the storage management capability of our DSVS.","PeriodicalId":210916,"journal":{"name":"2011 Australasian Telecommunication Networks and Applications Conference (ATNAC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129574916","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}
Pub Date : 2011-12-08DOI: 10.1109/ATNAC.2011.6096652
N. Beaulieu, Kasun T. Hemachandra
An analytical framework to evaluate the exact performance of multihop amplify-and-forward relaying in the presence of co-channel interference is presented. The new results are formulated based on the recently introduced generalized transformed characteristic function method. The new framework is used to evaluate the exact performance measures such as average symbol error probability, outage probability and ergodic capacity, when the multihop relaying system is operating in identically distributed fading channels with equal power interferers at the relays and the destination.
{"title":"Exact performance analysis of multihop relaying systems operating in co-channel interference using the generalized transformed characteristic function","authors":"N. Beaulieu, Kasun T. Hemachandra","doi":"10.1109/ATNAC.2011.6096652","DOIUrl":"https://doi.org/10.1109/ATNAC.2011.6096652","url":null,"abstract":"An analytical framework to evaluate the exact performance of multihop amplify-and-forward relaying in the presence of co-channel interference is presented. The new results are formulated based on the recently introduced generalized transformed characteristic function method. The new framework is used to evaluate the exact performance measures such as average symbol error probability, outage probability and ergodic capacity, when the multihop relaying system is operating in identically distributed fading channels with equal power interferers at the relays and the destination.","PeriodicalId":210916,"journal":{"name":"2011 Australasian Telecommunication Networks and Applications Conference (ATNAC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131047089","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}
Pub Date : 2011-12-08DOI: 10.1109/ATNAC.2011.6096629
Heiko Will, F. Juraschek, M. Günes, J. Schiller
The MANIAC Challenge is a competition for cooperation strategies in wireless ad-hoc networks with the focus on experimental evaluation. We present the results of the MANIAC Challenge and discuss characteristics of real networks such as link instability and mobility, which are often simplified in common network simulators. We introduce our strategy Friendly Clustering that won the Performance Award. Friendly Clustering is based on monitoring the neighbors' forwarding behavior and assessing their willingness to relay future data packets. Further on, we describe the challenges in implementing the strategy for real networks, such as the DES-Testbed at the Freie Universität Berlin and the ad-hoc network of the MANIAC Challenge.
MANIAC挑战赛是一项针对无线自组织网络合作策略的竞赛，重点是实验评估。我们介绍了MANIAC挑战的结果，并讨论了真实网络的特征，如链路不稳定性和移动性，这些特征在普通网络模拟器中经常被简化。我们推出了获得绩效奖的友好集群策略。友好聚类是基于监视邻居的转发行为和评估他们中继未来数据包的意愿。进一步，我们描述了在实际网络中实施该策略的挑战，例如Freie Universität Berlin的des测试平台和MANIAC挑战赛的ad-hoc网络。
{"title":"Experiences from the MANIAC Challenge","authors":"Heiko Will, F. Juraschek, M. Günes, J. Schiller","doi":"10.1109/ATNAC.2011.6096629","DOIUrl":"https://doi.org/10.1109/ATNAC.2011.6096629","url":null,"abstract":"The MANIAC Challenge is a competition for cooperation strategies in wireless ad-hoc networks with the focus on experimental evaluation. We present the results of the MANIAC Challenge and discuss characteristics of real networks such as link instability and mobility, which are often simplified in common network simulators. We introduce our strategy Friendly Clustering that won the Performance Award. Friendly Clustering is based on monitoring the neighbors' forwarding behavior and assessing their willingness to relay future data packets. Further on, we describe the challenges in implementing the strategy for real networks, such as the DES-Testbed at the Freie Universität Berlin and the ad-hoc network of the MANIAC Challenge.","PeriodicalId":210916,"journal":{"name":"2011 Australasian Telecommunication Networks and Applications Conference (ATNAC)","volume":"105 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122679932","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}
Pub Date : 2011-12-08DOI: 10.1109/ATNAC.2011.6096646
Mehdi Korki, N. Hosseinzadeh, H. Vu, T. Moazzeni, C. Foh
In this paper, we propose an optimal Clipping/Blanking nonlinearity technique for impulsive noise reduction in narrowband (9 kHz-490 kHz) PLC system. This optimal technique is based on the minimum bit error rate (BER) search. For our simulation, we have derived the transfer function of a typical low voltage (LV) PLC network using the common bottom-up approach and scattering matrix method. Our simulation results, in terms of BER versus signal to noise ratio (SNR), show that the proposed technique improves the BER performance of the narrowband PLC system.
{"title":"Impulsive noise reduction of a narrowband power line communication using optimal nonlinearity technique","authors":"Mehdi Korki, N. Hosseinzadeh, H. Vu, T. Moazzeni, C. Foh","doi":"10.1109/ATNAC.2011.6096646","DOIUrl":"https://doi.org/10.1109/ATNAC.2011.6096646","url":null,"abstract":"In this paper, we propose an optimal Clipping/Blanking nonlinearity technique for impulsive noise reduction in narrowband (9 kHz-490 kHz) PLC system. This optimal technique is based on the minimum bit error rate (BER) search. For our simulation, we have derived the transfer function of a typical low voltage (LV) PLC network using the common bottom-up approach and scattering matrix method. Our simulation results, in terms of BER versus signal to noise ratio (SNR), show that the proposed technique improves the BER performance of the narrowband PLC system.","PeriodicalId":210916,"journal":{"name":"2011 Australasian Telecommunication Networks and Applications Conference (ATNAC)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117009076","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}
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