Pub Date : 2000-12-17DOI: 10.1109/ICPWC.2000.905818
G. Sharma, V. Sinha
Present generation wireless networks are being designed considering voice as the primary traffic. They are not suitable to support high data traffic rate. Third-generation standards are proposed to meet the increasing data traffic demand over mobile telephones. Wideband code division multiple access (WCDMA) is a promising technique for radio access in future cellular networks and personal communication systems. This paper deals with the problem of resource allocation in the forward link for wideband CDMA networks. Three types of user classes are assumed with data rate of 9.6 kbit/s, 144 kbit/s and 384 kbit/s respectively. A mixed dynamic and static algorithm is proposed, under the constraint that the base station is total transmitted power-limited. The performance of different classes of traffic is compared. A comparative study for voice and data traffic has been carried out.
{"title":"Strategies for resource allocation in wideband CDMA networks for high data rate applications","authors":"G. Sharma, V. Sinha","doi":"10.1109/ICPWC.2000.905818","DOIUrl":"https://doi.org/10.1109/ICPWC.2000.905818","url":null,"abstract":"Present generation wireless networks are being designed considering voice as the primary traffic. They are not suitable to support high data traffic rate. Third-generation standards are proposed to meet the increasing data traffic demand over mobile telephones. Wideband code division multiple access (WCDMA) is a promising technique for radio access in future cellular networks and personal communication systems. This paper deals with the problem of resource allocation in the forward link for wideband CDMA networks. Three types of user classes are assumed with data rate of 9.6 kbit/s, 144 kbit/s and 384 kbit/s respectively. A mixed dynamic and static algorithm is proposed, under the constraint that the base station is total transmitted power-limited. The performance of different classes of traffic is compared. A comparative study for voice and data traffic has been carried out.","PeriodicalId":260472,"journal":{"name":"2000 IEEE International Conference on Personal Wireless Communications. Conference Proceedings (Cat. No.00TH8488)","volume":"350 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126031804","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 : 2000-12-17DOI: 10.1109/ICPWC.2000.905814
S. Kundu, S. Chakrabarti
Minimum duration outage analysis has been carried out for a cellular system supporting both voice and data services. The outage has been defined as the excursion of SIR (signal-to-interference ratio) below a threshold level for a certain minimum duration. A mathematical formulation with closed form expression for minimum duration outage considering the correlation between the signal and interference is presented. The capacity of the system in terms of the number of users is related to minimum duration outage probability considering an appropriate interference model.
{"title":"Minimum duration outage analysis of cellular CDMA for integrated services with correlated signal and interference","authors":"S. Kundu, S. Chakrabarti","doi":"10.1109/ICPWC.2000.905814","DOIUrl":"https://doi.org/10.1109/ICPWC.2000.905814","url":null,"abstract":"Minimum duration outage analysis has been carried out for a cellular system supporting both voice and data services. The outage has been defined as the excursion of SIR (signal-to-interference ratio) below a threshold level for a certain minimum duration. A mathematical formulation with closed form expression for minimum duration outage considering the correlation between the signal and interference is presented. The capacity of the system in terms of the number of users is related to minimum duration outage probability considering an appropriate interference model.","PeriodicalId":260472,"journal":{"name":"2000 IEEE International Conference on Personal Wireless Communications. Conference Proceedings (Cat. No.00TH8488)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124907635","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 : 2000-12-17DOI: 10.1109/ICPWC.2000.905777
R. Shorey, B. A. Miller
Bluetooth/sup TM/ wireless technology is a proposed publicly available specification for radiofrequency (RF), short-range, point-to-multipoint voice and data transfer. It also supports point-to-point connections. It operates in the 2.4 GHz ISM (industrial, scientific and medical) band and is based on a low-cost, short-range radio link that facilitates ad-hoc connections for stationary and mobile communication environments. There has been much interest in the Bluetooth technology since it could enable users to connect to a wide range of computing and telecommunications devices without the need to buy, carry, or connect cables. It delivers opportunities for rapid, ad-hoc connections, and in the future, could possibly enable automatic, unconscious connections between devices. In this paper, we discuss the merits and limitations of the Bluetooth technology and address challenging problems that may arise in the future when using Bluetooth wireless communication. We also present new and interesting open research problems in this area.
{"title":"The Bluetooth technology: merits and limitations","authors":"R. Shorey, B. A. Miller","doi":"10.1109/ICPWC.2000.905777","DOIUrl":"https://doi.org/10.1109/ICPWC.2000.905777","url":null,"abstract":"Bluetooth/sup TM/ wireless technology is a proposed publicly available specification for radiofrequency (RF), short-range, point-to-multipoint voice and data transfer. It also supports point-to-point connections. It operates in the 2.4 GHz ISM (industrial, scientific and medical) band and is based on a low-cost, short-range radio link that facilitates ad-hoc connections for stationary and mobile communication environments. There has been much interest in the Bluetooth technology since it could enable users to connect to a wide range of computing and telecommunications devices without the need to buy, carry, or connect cables. It delivers opportunities for rapid, ad-hoc connections, and in the future, could possibly enable automatic, unconscious connections between devices. In this paper, we discuss the merits and limitations of the Bluetooth technology and address challenging problems that may arise in the future when using Bluetooth wireless communication. We also present new and interesting open research problems in this area.","PeriodicalId":260472,"journal":{"name":"2000 IEEE International Conference on Personal Wireless Communications. Conference Proceedings (Cat. No.00TH8488)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130404540","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 : 2000-12-17DOI: 10.1109/ICPWC.2000.905844
S. Sengodan, R. Bansal
Dialup users of data networks that use the point-point protocol (PPP) make use of a network address identifier (NAI) for user identification. NAI is also being used for roaming and tunneling service in data networks. On the other hand, cellular networks make use of an alternative user identification format which is usually the international mobile subscriber identity (IMSI) or the mobile identification number (MIN). Similarly, terrestrial trunked radio (TETRA)-based professional mobile radio (PMR) networks make use of the individual TETRA subscriber identity (ITSI) for user identification. With the impending integration of cellular/PMR networks and data networks, it is desirable to have a one-one mapping between IMSI/MIN/ITSI and NAI. An operational procedure is needed whereby such a mapping occurs within the network and is transparent to the user. The Mobile IP working group within the IETF is currently investigating such a mapping for cellular networks. However, no mechanisms have been described for GPRS or TETRA networks. We outline a mechanism for such a mapping and the associated operational procedures when the cellular network is a general packet radio service (GPRS) network and also when the access network is a TETRA PMR network.
{"title":"An NAI resolution mechanism for GPRS and TETRA PMR networks","authors":"S. Sengodan, R. Bansal","doi":"10.1109/ICPWC.2000.905844","DOIUrl":"https://doi.org/10.1109/ICPWC.2000.905844","url":null,"abstract":"Dialup users of data networks that use the point-point protocol (PPP) make use of a network address identifier (NAI) for user identification. NAI is also being used for roaming and tunneling service in data networks. On the other hand, cellular networks make use of an alternative user identification format which is usually the international mobile subscriber identity (IMSI) or the mobile identification number (MIN). Similarly, terrestrial trunked radio (TETRA)-based professional mobile radio (PMR) networks make use of the individual TETRA subscriber identity (ITSI) for user identification. With the impending integration of cellular/PMR networks and data networks, it is desirable to have a one-one mapping between IMSI/MIN/ITSI and NAI. An operational procedure is needed whereby such a mapping occurs within the network and is transparent to the user. The Mobile IP working group within the IETF is currently investigating such a mapping for cellular networks. However, no mechanisms have been described for GPRS or TETRA networks. We outline a mechanism for such a mapping and the associated operational procedures when the cellular network is a general packet radio service (GPRS) network and also when the access network is a TETRA PMR network.","PeriodicalId":260472,"journal":{"name":"2000 IEEE International Conference on Personal Wireless Communications. Conference Proceedings (Cat. No.00TH8488)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129143378","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 : 2000-12-17DOI: 10.1109/ICPWC.2000.905770
R.M. Bendett, P. Neelakanta
Handoff (or handover) refers to a crucial effort by a particular mobile unit to change from its serving base station to another as warranted by dynamic variations in link quality caused by mobility and interference/fading considerations. Classically, the handover initiation is done by a decision algorithm based on received signal strengths (RSSs) from the serving and prospective base stations. That is, the power difference of the received signal is used as a metric for handoff initiation. Very rapid switching between the two base stations could take place, especially when the mobile unit moves along a cell boundary. To prevent or reduce that effect, this study demonstrates a new algorithmic approach wherein the hard handoff decision is performed by computing the "statistical distance" between two received signal strengths. That is, a set of information-theoretic (IT) based distance measures obtained from the statistics of the RSSs is indicated as alternative metrics for hard handoff efforts.
{"title":"Alternative metrics for hard handoffs in mobile communication","authors":"R.M. Bendett, P. Neelakanta","doi":"10.1109/ICPWC.2000.905770","DOIUrl":"https://doi.org/10.1109/ICPWC.2000.905770","url":null,"abstract":"Handoff (or handover) refers to a crucial effort by a particular mobile unit to change from its serving base station to another as warranted by dynamic variations in link quality caused by mobility and interference/fading considerations. Classically, the handover initiation is done by a decision algorithm based on received signal strengths (RSSs) from the serving and prospective base stations. That is, the power difference of the received signal is used as a metric for handoff initiation. Very rapid switching between the two base stations could take place, especially when the mobile unit moves along a cell boundary. To prevent or reduce that effect, this study demonstrates a new algorithmic approach wherein the hard handoff decision is performed by computing the \"statistical distance\" between two received signal strengths. That is, a set of information-theoretic (IT) based distance measures obtained from the statistics of the RSSs is indicated as alternative metrics for hard handoff efforts.","PeriodicalId":260472,"journal":{"name":"2000 IEEE International Conference on Personal Wireless Communications. Conference Proceedings (Cat. No.00TH8488)","volume":"137 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127923979","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 : 2000-12-17DOI: 10.1109/ICPWC.2000.905843
A. Tripathi, K. Sivarajan
We have proposed two algorithms for the fixed and the dynamic channel allocation schemes in GPRS. We started with a simple channel allocation problem in GPRS and showed that it is closely related to the one-dimensional standard bin packing problem. We used two online bin packing algorithms, namely the first fit (FF) and the best fit (BF) algorithms, for channel allocation and obtained their performance for single slot operation, multislot operation and also for a realistic case with multislot class 21 MS. We have also analysed the fixed channel allocation, single slot operation case and analytical results are found to compare favourably with the results from simulations.
{"title":"Resource allocation in GPRS wireless networks","authors":"A. Tripathi, K. Sivarajan","doi":"10.1109/ICPWC.2000.905843","DOIUrl":"https://doi.org/10.1109/ICPWC.2000.905843","url":null,"abstract":"We have proposed two algorithms for the fixed and the dynamic channel allocation schemes in GPRS. We started with a simple channel allocation problem in GPRS and showed that it is closely related to the one-dimensional standard bin packing problem. We used two online bin packing algorithms, namely the first fit (FF) and the best fit (BF) algorithms, for channel allocation and obtained their performance for single slot operation, multislot operation and also for a realistic case with multislot class 21 MS. We have also analysed the fixed channel allocation, single slot operation case and analytical results are found to compare favourably with the results from simulations.","PeriodicalId":260472,"journal":{"name":"2000 IEEE International Conference on Personal Wireless Communications. Conference Proceedings (Cat. No.00TH8488)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126251237","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 : 2000-12-17DOI: 10.1109/ICPWC.2000.905826
A. Shastri
This paper surveys some macroscopic measures of congestion that pertain to spread spectrum networks which are used in network control to decide whether or not to admit a call. Such measures reflect the congestion in the region of the network that the call will interact with during its lifetime as opposed to properties of the user itself at call set up time which are of little value due to temporal variance. By developing network-wide measures of congestion for spread spectrum systems, the task of call admissions is much simplified. Three models of spread spectrum which are studied are network of cells employing CDMA, interference cancellation and a macrodiversity model. The most startling result here is that measures of congestion can be given in terms of eigenvalues of matrix defining the network geometry. Though it is a macroscopic quantity, it is measurable by any user or cell site in a decentralized way.
{"title":"Congestion in spread spectrum wireless mobile communication networks","authors":"A. Shastri","doi":"10.1109/ICPWC.2000.905826","DOIUrl":"https://doi.org/10.1109/ICPWC.2000.905826","url":null,"abstract":"This paper surveys some macroscopic measures of congestion that pertain to spread spectrum networks which are used in network control to decide whether or not to admit a call. Such measures reflect the congestion in the region of the network that the call will interact with during its lifetime as opposed to properties of the user itself at call set up time which are of little value due to temporal variance. By developing network-wide measures of congestion for spread spectrum systems, the task of call admissions is much simplified. Three models of spread spectrum which are studied are network of cells employing CDMA, interference cancellation and a macrodiversity model. The most startling result here is that measures of congestion can be given in terms of eigenvalues of matrix defining the network geometry. Though it is a macroscopic quantity, it is measurable by any user or cell site in a decentralized way.","PeriodicalId":260472,"journal":{"name":"2000 IEEE International Conference on Personal Wireless Communications. Conference Proceedings (Cat. No.00TH8488)","volume":"144 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122776682","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 : 2000-12-17DOI: 10.1109/ICPWC.2000.905823
G. Hooghiemstra, L. Meester, Sahid
We analyse the statistical model for indoor multipath radio propagation, introduced by Saleh and Valenzuela (1987). We show that the moments of this random measure can be computed by elementary methods and parameter estimation from measurements of total power gain, mean and rms delay spread, can be performed using the method of moments. It is also shown, by approximate methods, how one may estimate parameters on the basis of mean excess delay and rms delay spread data only. The methods are illustrated with examples based on simulated data.
{"title":"Analysis of a stochastic model for indoor multipath propagation","authors":"G. Hooghiemstra, L. Meester, Sahid","doi":"10.1109/ICPWC.2000.905823","DOIUrl":"https://doi.org/10.1109/ICPWC.2000.905823","url":null,"abstract":"We analyse the statistical model for indoor multipath radio propagation, introduced by Saleh and Valenzuela (1987). We show that the moments of this random measure can be computed by elementary methods and parameter estimation from measurements of total power gain, mean and rms delay spread, can be performed using the method of moments. It is also shown, by approximate methods, how one may estimate parameters on the basis of mean excess delay and rms delay spread data only. The methods are illustrated with examples based on simulated data.","PeriodicalId":260472,"journal":{"name":"2000 IEEE International Conference on Personal Wireless Communications. Conference Proceedings (Cat. No.00TH8488)","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115682119","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 : 2000-12-17DOI: 10.1109/ICPWC.2000.905773
A. Misra, S. Das, A. McAuley, A. Dutta, S.K. Das
The paper describes a differentiated services-based QoS architecture for next-generation cellular wireless networks. The architecture is based on the two-level TeleMIP (telecommunications-enhanced mobile IP) hierarchical mobility management scheme and integrates bandwidth broker-based admission control and resource provisioning for mobile nodes. The TeleMIP architecture is extended to satisfy the QoS requirements of a mobile node, while requiring it to specify its traffic profile only when it first moves into a domain. The paper explores alternative approaches for dynamically assigning mobility agents to a mobile node and evaluates their suitability for different service differentiation models.
本文描述了下一代蜂窝无线网络中基于差异化服务的QoS体系结构。该架构基于两级TeleMIP (telecommunications-enhanced mobile IP)分层移动管理方案，集成了基于带宽代理的移动节点准入控制和资源发放。对TeleMIP架构进行了扩展，以满足移动节点的QoS要求，同时要求其仅在首次进入域时指定其流量配置文件。本文探讨了动态分配移动代理到移动节点的替代方法，并评估了它们对不同服务分化模型的适用性。
{"title":"Integrating QoS support in TeleMIP's mobility architecture","authors":"A. Misra, S. Das, A. McAuley, A. Dutta, S.K. Das","doi":"10.1109/ICPWC.2000.905773","DOIUrl":"https://doi.org/10.1109/ICPWC.2000.905773","url":null,"abstract":"The paper describes a differentiated services-based QoS architecture for next-generation cellular wireless networks. The architecture is based on the two-level TeleMIP (telecommunications-enhanced mobile IP) hierarchical mobility management scheme and integrates bandwidth broker-based admission control and resource provisioning for mobile nodes. The TeleMIP architecture is extended to satisfy the QoS requirements of a mobile node, while requiring it to specify its traffic profile only when it first moves into a domain. The paper explores alternative approaches for dynamically assigning mobility agents to a mobile node and evaluates their suitability for different service differentiation models.","PeriodicalId":260472,"journal":{"name":"2000 IEEE International Conference on Personal Wireless Communications. Conference Proceedings (Cat. No.00TH8488)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126827938","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 : 2000-12-17DOI: 10.1109/ICPWC.2000.905821
R. Ganesh, Ning Yang, S. Regitz, A. Giordano, D. Fye
It is well established that a direct CDMA overlay provides excellent portable-grade coverage on existing networks already configured for good analog portable-grade coverage. This paper examines coverage considerations for CDMA overlay in rural areas where the underlying AMPS network was not originally designed to provide portable-grade coverage. CDMA portable coverage in such areas is compared to both AMPS portable coverage and 3 W AMPS mobile coverage. Methods are identified for minimizing the cost of providing good-quality CDMA in-car portable coverage from overlay of omnidirectional AMPS cell sites in rural areas.
{"title":"Coverage considerations for CDMA overlay of rural analog sites","authors":"R. Ganesh, Ning Yang, S. Regitz, A. Giordano, D. Fye","doi":"10.1109/ICPWC.2000.905821","DOIUrl":"https://doi.org/10.1109/ICPWC.2000.905821","url":null,"abstract":"It is well established that a direct CDMA overlay provides excellent portable-grade coverage on existing networks already configured for good analog portable-grade coverage. This paper examines coverage considerations for CDMA overlay in rural areas where the underlying AMPS network was not originally designed to provide portable-grade coverage. CDMA portable coverage in such areas is compared to both AMPS portable coverage and 3 W AMPS mobile coverage. Methods are identified for minimizing the cost of providing good-quality CDMA in-car portable coverage from overlay of omnidirectional AMPS cell sites in rural areas.","PeriodicalId":260472,"journal":{"name":"2000 IEEE International Conference on Personal Wireless Communications. Conference Proceedings (Cat. No.00TH8488)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126634581","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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