{"title":"Periodic contention-free multiple access for broadband multimedia powerline communication networks","authors":"Yu-Ju Lin, H. Latchman, J. Liu, R. Newman","doi":"10.1109/ISPLC.2005.1430478","DOIUrl":"https://doi.org/10.1109/ISPLC.2005.1430478","url":null,"abstract":"There is industrial intent to use powerline communication (PLC) networks in the home for delivery of multimedia data, with associated challenging quality of service (QoS) requirements. Existing protocols for PLC, for wireless networks, or even for wired networks cannot meet these challenges efficiently. This paper proposes and analyzes a new protocol designed to provide the high QoS needed for delivery of multiple multimedia streams in a PLC environment. The proposed protocol, periodic contention-free multiple access (PCF/MA), directly addresses the issues of asymmetric communication channel, hidden nodes and near-far effects. The proposed PCF/MA performance is analyzed theoretically and its performance is simulated. The results show that 85 Mbps MAC throughput is possible with 100 Mbps channel data rate, even when there are hidden nodes in the network. Through mathematical modeling and software simulation for tight bandwidth allocation, such a network can deliver up to 9 MPEG-2 video streams simultaneously without dropping any video frames, compared to 7 video streams using MCSMA/CA (Modified CSMA/CA).","PeriodicalId":153251,"journal":{"name":"International Symposium on Power Line Communications and Its Applications, 2005.","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124945727","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}
{"title":"Propagation of disturbance signal between PLC modem and radio receiver","authors":"M. Heina, A. Rohrich, H. Hirsch","doi":"10.1109/ISPLC.2005.1430500","DOIUrl":"https://doi.org/10.1109/ISPLC.2005.1430500","url":null,"abstract":"A method to analyze the propagation of signals between PLC modem and radio receiver is presented. The proposed equipment, named radio dummy, operates like a short wave radio receiver with a short rod antenna. It operates in a battery-driven mode as well as with an external power connection to the low voltage distribution network. In a simulation and an experimental measurement the influence on the disturbance level of the branches and switches in the power network are analyzed in principle.","PeriodicalId":153251,"journal":{"name":"International Symposium on Power Line Communications and Its Applications, 2005.","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129166437","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}
{"title":"Multiuser power and bit allocation over power line channels","authors":"C. Assimakopoulos, F. Pavlidou","doi":"10.1109/ISPLC.2005.1430509","DOIUrl":"https://doi.org/10.1109/ISPLC.2005.1430509","url":null,"abstract":"In this paper the power lines are studied as a multi-user environment for data transmission. The aim of the multi-user optimization problem is the minimization of the aggregate transmitting power when several constraints are fulfilled. The optimum but computationally not efficient system is simulated and analyzed. A FDMA system, which is a typical multiuser system, is also applied over the same power line channels. Then several suboptimal schemes but with reduced complexity are simulated and analyzed in detail. A new suboptimal multiuser system is proposed and compared to the others in terms of normalized transmission power per bit for several data loads and constant BER. The proposed system outperforms the suboptimal competitors, increasing slightly the system's complexity. The main gist of the new algorithm is that the weak users are delayed whereas the strong users are accelerated. That means that the weak users have to store their data for short periods of time in buffers and transmit them later when the strong users have achieved to transmit their own bits and thus liberate their own subchannels.","PeriodicalId":153251,"journal":{"name":"International Symposium on Power Line Communications and Its Applications, 2005.","volume":"251 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132641626","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}
{"title":"A study on adaptive modulation of data spread OFDM","authors":"H. Ishikawa, M. Fujii, M. Itami, K. Itoh","doi":"10.1109/ISPLC.2005.1430463","DOIUrl":"https://doi.org/10.1109/ISPLC.2005.1430463","url":null,"abstract":"An adaptive sub-carrier modulation in OFDM transmission is an effective scheme in order to increase transmission rate because it is possible for OFDM to determine a modulation scheme of each sub-carrier independently according to its channel state information. However, in this case, it is necessary to transmit allocation information of modulation from the transmitter to the receiver and this leads to degradation of performance. In this paper, an adaptive modulation scheme for OFDM that makes possible less information transmission from the transmitter to the receiver for allocation information is proposed. Moreover, sub-carrier power control is combined in order to improve performance further. As the result of theoretical analysis and simulation, better performance of the proposed scheme was confirmed.","PeriodicalId":153251,"journal":{"name":"International Symposium on Power Line Communications and Its Applications, 2005.","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130752426","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}
{"title":"Influence of single frequency network transmission on the physical layer of a multi carrier modulation system","authors":"G. Bumiller","doi":"10.1109/ISPLC.2005.1430470","DOIUrl":"https://doi.org/10.1109/ISPLC.2005.1430470","url":null,"abstract":"The application requirements and existing experience in the PLC market show that it is necessary to cover large areas or long distances. In these kinds of PLC networks repeaters are necessary. A single frequency network, however, allows a very simple repeater concept, e.g.: all participants who have correctly received a packet from the master retransmit this packet at the same time, i.e. in the next time slot, which is reserved for the repetition, on the same medium and the same frequency. iAd has already presented a paper on this item at the ISPLC 2002(G. Bumiller, 2002) . The new paper now analyses the influence of transmission in a single frequency network on the physical layer of a multi carrier system. Several transmitters at various locations transmit identical information on the same medium and the same frequencies at the same time. The receivers see the superposition of the signals. In the first paper we showed, that it is possible to understand this superposition in the same way as multi path propagation and the bandwidth of the system has to be broad enough to overcome the notches of the transfer function on certain frequencies. Yet, in some cases it is not possible to meet this requirement. Furthermore, there are additional effects on the physical layer if phase and frequency of transmitters differ. These effects depend on each other and will be analysed. Due to these effects, the frequencies of the notches in the transfer function change over time. The paper discusses possibilities to use these effects for systems with smaller bandwidth. Here, the repetitions allow other concepts than used by broadcast systems.","PeriodicalId":153251,"journal":{"name":"International Symposium on Power Line Communications and Its Applications, 2005.","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128449682","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}
{"title":"In situ characterization of impedance mismatch in a medium voltage network","authors":"F. Issa, M. Goldberg, M. Marthe, F. Rachidi","doi":"10.1109/ISPLC.2005.1430542","DOIUrl":"https://doi.org/10.1109/ISPLC.2005.1430542","url":null,"abstract":"An in situ methodology is proposed to characterize the impedance mismatch at each power line communication transmission port in medium voltage network. Based on path loss and impedance measurements, a complete characterization of a non energized medium voltage network is performed. Being able to propose a power budget at each transmission port can be also useful for EMC standards and impedance matching issues. Since power can often be switched off in medium voltage, it is interesting to analyse the behaviour of the network in these conditions.","PeriodicalId":153251,"journal":{"name":"International Symposium on Power Line Communications and Its Applications, 2005.","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127349660","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}
{"title":"Efficient framing and ARQ for high-speed PLC systems","authors":"S. Katar, L. Yonge, R. Newman, H. Latchman","doi":"10.1109/ISPLC.2005.1430459","DOIUrl":"https://doi.org/10.1109/ISPLC.2005.1430459","url":null,"abstract":"In powerline communications (PLC) more so than in many other media, there is a strong interaction between the medium access control (MAC) layer and the physical (PHY) layer. This paper investigates one of the manifestations of this interaction, that of MAC framing and error recovery with PHY transmission characteristics. MAC framing for high-speed PLC systems should be capable of concatenating multiple MAC service data units (MSDUs, e.g., Ethernet or IP packets) in order to amortize the high and fixed overheads associated with each MAC protocol data unit (MPDU). By itself, this is easy. However, transmission errors may damage portions of an MPDU, which can further rob a system of efficiency. This paper presents a 2-level MAC framing mechanism that enables efficient retransmission of corrupted data. Both analytical and simulation results are used to compare the performance of the proposed MAC framing scheme with other existing viable approaches. The results show that the proposed scheme is significantly superior to existing approaches. A slightly modified version of this 2-level framing mechanism provided in this paper was used in the new generation 200 Mbps class homeplug standard, homeplug A V.","PeriodicalId":153251,"journal":{"name":"International Symposium on Power Line Communications and Its Applications, 2005.","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114213750","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}
{"title":"An impulse modulation based PLC system with frequency domain receiver processing","authors":"Andrea M. Tonello","doi":"10.1109/ISPLC.2005.1430506","DOIUrl":"https://doi.org/10.1109/ISPLC.2005.1430506","url":null,"abstract":"In this paper we propose a wideband impulse modulated based system for indoor power line communications (PLC). Impulse modulation is combined with DS-CDMA to allow for user multiplexing. We describe the key system parameters and we focus on the receiver algorithms. The receiver operates in the frequency domain (FD). We describe various FD algorithms that include the capability of canceling the inter-code interference and the multiple access interference. Simulation results are reported for a proposed wide band statistical channel model.","PeriodicalId":153251,"journal":{"name":"International Symposium on Power Line Communications and Its Applications, 2005.","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128684266","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}
{"title":"Data transparency in PLC-based SCADA and metering protocols","authors":"A. Bratukhin, G. Pratl, M. Lobashov, P. Maas","doi":"10.1109/ISPLC.2005.1430469","DOIUrl":"https://doi.org/10.1109/ISPLC.2005.1430469","url":null,"abstract":"Using a power line network as communication middleware between existing SCADA or metering applications and field devices, both not prepared to communicate over PLC, puts the burden on the communication system to ensure reliable communication within the timing constraints of the already existing protocols and devices. In this paper we show how the REMPLI communication system deals with the issues that arise when data transfer over multiple communication paths in the same communication medium is demanded together with the support of different, redundant communication media like ISDN or GSM while at the same transparently transporting application protocol requests, which the system is either not able or not allowed to modify.","PeriodicalId":153251,"journal":{"name":"International Symposium on Power Line Communications and Its Applications, 2005.","volume":"84 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124562196","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}
{"title":"Field trials of utility applications employing Ambient Corporation power line communications at Consolidated Edison","authors":"G. Jee, D. Sciano, R. Rao, Y. Cern, B. Nugent","doi":"10.1109/ISPLC.2005.1430535","DOIUrl":"https://doi.org/10.1109/ISPLC.2005.1430535","url":null,"abstract":"This paper expands upon the power line communications (PLC) applications discussed in \"Demonstration of the technical viability of PLC systems on medium and low voltage lines in the United States\". The focus of this paper was on the potential application of PLC for incipient fault detection on Consolidated Edison's overhead primary system and presents some preliminary findings obtained through Ambient Corporation's PLC field trials.","PeriodicalId":153251,"journal":{"name":"International Symposium on Power Line Communications and Its Applications, 2005.","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126616595","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}