{"title":"Statistical model of microwave oven interference and optimum reception","authors":"H. Kanemoto, S. Miyamoto, N. Morinaga","doi":"10.1109/ICC.1998.683112","DOIUrl":"https://doi.org/10.1109/ICC.1998.683112","url":null,"abstract":"Microwave oven interference seriously degrades the performance of digital radio communication systems, therefore, in order to obtain a good error performance under a microwave oven interference environment, the digital radio communication systems should be newly designed for this environment. In this paper, using the Middleton's (1977) canonical class-A impulsive noise model, we propose a statistical model of microwave oven interference and discuss the performance improvement achieved by optimum reception based on this statistical model. Numerical results conclude that the first order statistics of microwave oven interference can be modeled by class-A impulsive radio noise, and a great performance improvement is obtained by using the optimum receiver designed against microwave oven interference with the introduction of the sample interleave scheme.","PeriodicalId":218354,"journal":{"name":"ICC '98. 1998 IEEE International Conference on Communications. Conference Record. Affiliated with SUPERCOMM'98 (Cat. No.98CH36220)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115142506","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":"Performance improvements of wireless IP multicast conference system based on designated receivers","authors":"Min Jeong Lee, D. Cho","doi":"10.1109/ICC.1998.685121","DOIUrl":"https://doi.org/10.1109/ICC.1998.685121","url":null,"abstract":"The problem due to wireless network environments is investigated and performance improvements in implementing wireless IP multicast conference system are studied. In wireless communication, since there are various error environments, a long delay occurs and the QoS is degraded due to retransmission. To improve the end-to-end delay, the resource usage and QoS of the wireless network, DR (designated receiver) located at caches of the BS (base station) receives data and responds to the retransmission requests of the receivers. If error occurs in the wireless channel, MH in each local region sends a NAK to its corresponding DR located at the BS, which manages the retransmission routine. Simulation results show that the proposed method has a better performance than conventional methods in view of the delay and throughput because the data error is quickly restored.","PeriodicalId":218354,"journal":{"name":"ICC '98. 1998 IEEE International Conference on Communications. Conference Record. Affiliated with SUPERCOMM'98 (Cat. No.98CH36220)","volume":"96 2-3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123565753","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":"Performance evaluation of a multicarrier modulation technique allowing strongly nonlinear amplification","authors":"R. Dinis, A. Gusmão","doi":"10.1109/ICC.1998.685118","DOIUrl":"https://doi.org/10.1109/ICC.1998.685118","url":null,"abstract":"OFDM techniques, known to be well-suited for high rate transmission in time-dispersive channels, are currently being considered for broadband wireless LAN systems. However, the strong envelope fluctuation of conventional OFDM signals is hardly compatible with an efficient, somewhat nonlinear, power amplification. A new multicarrier modulation technique, called CEPB-OFDM (constant envelope paired burst OFDM), was proposed to allow high transmit power efficiencies. This paper is concerned with the performance evaluation of CEPB-OFDM and includes a performance comparison, when a grossly nonlinear power amplifier is employed, with other previously proposed OFDM techniques which are able to reduce the envelope fluctuation. The performance results clearly indicate that the CEPB-OFDM technique is recommendable for the above-mentioned wireless systems.","PeriodicalId":218354,"journal":{"name":"ICC '98. 1998 IEEE International Conference on Communications. Conference Record. Affiliated with SUPERCOMM'98 (Cat. No.98CH36220)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123632235","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":"All-optical 2/sup n/ extended prime codes for optical fiber code-division multiple-access applications","authors":"Jianguo Zhang, W. Kwong, A. B. Sharma","doi":"10.1109/ICC.1998.685147","DOIUrl":"https://doi.org/10.1109/ICC.1998.685147","url":null,"abstract":"We propose a new family of 2/sup n/ codes, called 2/sup n/ extended prime codes, for all-optical code-division multiple access (CDMA) networks. These 2/sup n/ codes are derived from \"extended\" prime codes such that their cross-correlation functions are not greater than one, as opposed to two in previously proposed 2/sup n/ prime codes. As a result, a larger number of active users can now be supported by the new codes in all-optical CDMA networks where optical multiple-access interference is a major performance limiting factor. Moreover, power-efficient, waveguide-integrable all-serial coding and correlating configurations proposed for the 2/sup n/ prime codes can still be employed by the new codes.","PeriodicalId":218354,"journal":{"name":"ICC '98. 1998 IEEE International Conference on Communications. Conference Record. Affiliated with SUPERCOMM'98 (Cat. No.98CH36220)","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125149814","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":"Finding good combinations of initial phases for periodic sources in discrete-time queues","authors":"F. Ishizaki, C. Ohta","doi":"10.1109/ICC.1998.683076","DOIUrl":"https://doi.org/10.1109/ICC.1998.683076","url":null,"abstract":"Our study aims to construct the framework to accommodate periodic and bursty sources into ATM networks effectively. For this purpose, we develop two effective algorithms which can find a good combination of the initial phases of periodic sources in a short time. We then consider a call admission control (CAC) scheme which controls phase combinations of the periodic sources and decides whether a new call is accepted or not by taking account of the controlled phase combinations. Our CAC scheme is applicable to real-time MPEG video traffic which will be the major traffic in ATM networks. Simulation results show that our algorithms can find a better combination of initial phases than those chosen randomly in any our trials under both homogeneous and heterogeneous traffic environments.","PeriodicalId":218354,"journal":{"name":"ICC '98. 1998 IEEE International Conference on Communications. Conference Record. Affiliated with SUPERCOMM'98 (Cat. No.98CH36220)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125198656","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":"The performance of a new routing protocol for the reconfigurable wireless networks","authors":"Z. Haas, M. R. Pearlman","doi":"10.1109/ICC.1998.682608","DOIUrl":"https://doi.org/10.1109/ICC.1998.682608","url":null,"abstract":"In this paper, we investigate the performance of a novel routing protocol, the zone routing protocol (ZRP), that was introduced in Haas (1997). The protocol is targeted at a special class of ad-hoc networks, which we refer to as the reconfigurable wireless networks (RWNs). RWNs are distinguished from other ad-hoc networks by their increased node mobility, larger number of nodes, and wider network span. We demonstrate that ZRP significantly reduces the delay and the amount of routing overhead by providing each node with continuous updates of its local neighborhood (routing zone) topology only. The structure of the routing zone is exploited to efficiently acquire routes on demand for destinations that lie beyond a node's routing zone. By adjusting a single parameter-the size of the routing zone-the ZRP can adapt to a variety of network operational conditions.","PeriodicalId":218354,"journal":{"name":"ICC '98. 1998 IEEE International Conference on Communications. Conference Record. Affiliated with SUPERCOMM'98 (Cat. No.98CH36220)","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126170651","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":"Construction of high-efficient optical CDMA computer networks: statistical design","authors":"Jens Mückenheim, K. Iversen, D. Hampicke","doi":"10.1109/ICC.1998.683033","DOIUrl":"https://doi.org/10.1109/ICC.1998.683033","url":null,"abstract":"We propose a new design method for optical CDMA networks called \"statistical design\" (SD)-which uses the interrelation between the physical layer and the data link layer. This generalized method allows significant reduction of the hardware costs, which are usually necessary to ensure low bit-error ratios, taking into account the bursty traffic of this type of networks. By this method various technological and software parameters can be derived.","PeriodicalId":218354,"journal":{"name":"ICC '98. 1998 IEEE International Conference on Communications. Conference Record. Affiliated with SUPERCOMM'98 (Cat. No.98CH36220)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129843627","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":"Optimal feedback control of ABR traffic in ATM networks","authors":"Bo-Kyoung Kim, C. Thompson","doi":"10.1109/ICC.1998.685129","DOIUrl":"https://doi.org/10.1109/ICC.1998.685129","url":null,"abstract":"In this work we examine the problem of regulating available bit rate (ABR) traffic in an ATM network. A unique feature of ABR service is the requirement that sources be regulated using information from distant ATM nodes. This feature is problematic for source control schemes when the time-delays incurred in the feedback path and the temporal variation in the link capacity at the ATM node are considered. A source rate control algorithm that allows for the coordination of the traffic between sources sharing a congested node is presented. The coefficients of the controller are chosen subject to the minimization of a quadratic performance index. The results of the method are also given.","PeriodicalId":218354,"journal":{"name":"ICC '98. 1998 IEEE International Conference on Communications. Conference Record. Affiliated with SUPERCOMM'98 (Cat. No.98CH36220)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130000013","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":"Quasi-minimum-BER linear combiner equalizers","authors":"J. Tellado, J. Cioffi","doi":"10.1109/ICC.1998.682535","DOIUrl":"https://doi.org/10.1109/ICC.1998.682535","url":null,"abstract":"It is well known that the minimum mean square error (MMSE) and minimum peak distortion (MPD) criteria do not minimize bit error rate (MinBER), and for some channels they can have a large degradation compared to the MinBER solution. Based on the strengths and weaknesses of the MMSE and MPD criteria, we have defined two new solutions, which we call minimum noise limited peak distortion (MNLPD) and min-/spl alpha/. The first solution is based on MPD but avoids the problem of noise enhancement. The second solution finds the optimal of a family of equalizers derived from the MMSE and MPD criteria. We have shown by numerical calculation that by using the MNLPD or the min-/spl alpha/ criteria we can achieve almost MinBER performance. The proposed methods have a larger complexity, but can be solved using well known techniques since they can be described as simple convex optimization problems.","PeriodicalId":218354,"journal":{"name":"ICC '98. 1998 IEEE International Conference on Communications. Conference Record. Affiliated with SUPERCOMM'98 (Cat. No.98CH36220)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128519516","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":"Performance of the bootstrap multiuser CDMA detector in frequency non-selective fading channel","authors":"Xiaochun Li, Y. Bar-Ness","doi":"10.1109/ICC.1998.682585","DOIUrl":"https://doi.org/10.1109/ICC.1998.682585","url":null,"abstract":"The conventional CDMA signal detector suffers from MAI (multiaccess interference). Even with perfect power control, MAI always exists and accumulates when the number of users increases, such that the system capacity is limited. Under a wireless mobile channel, the case becomes worse and the detection of the desired CDMA signal, particularly in a fading environment, becomes more difficult. There have been numerous proposals for near-far resistant detectors, adaptive or non-adaptive, most of which assumed an additive white Gaussian noise (AWGN) channel. This paper evaluates the performance of the conventional detector (which uses solely a filter to match to the desired user) and the bootstrap adaptive detector under a slow fading environment. It compares the performance of a conventional detector and a bootstrap adaptive detector with that of a single user detector (no MAI) under a flat Rayleigh fading channel. Simulation and theoretical results show that the bootstrap adaptive detector gives a performance close to the single user detector and it remains near far resistant as it is under an AWGN channel.","PeriodicalId":218354,"journal":{"name":"ICC '98. 1998 IEEE International Conference on Communications. Conference Record. Affiliated with SUPERCOMM'98 (Cat. No.98CH36220)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128539465","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}