Pub Date : 2003-04-09DOI: 10.1109/ICCT.2003.176878
J. Khoja, M. Al-Shalash, J. Bredow
Abstruct- In 3G wireless systems the volume of data traftie is expected to be larger on the forward link than the reverse link This is one of the main reasons that contribute to the forward link being the limiting link for the capacity of 3C CDMA systems, Many different algorithms interact in complex ways to affect the achieved capacity and define the system’s operation and coverage. This work studies the impact of system algorithms and their parameters, like maximum base station power, power partitioning between overhead and traffic, and connection blocking algorithms. It examines their effect on forward link performance (e.g. capacity, coverage, call blocking and dropout probabilities). A dynamic system simulator is used to examine how these algorithms, and their parameters affect the sytem capacity/coverage tradeoff. KqtwordMDMA; forward link; capaciv; coverage; 36
{"title":"Capacity and coverage management issues in the forward link of CDMA systems","authors":"J. Khoja, M. Al-Shalash, J. Bredow","doi":"10.1109/ICCT.2003.176878","DOIUrl":"https://doi.org/10.1109/ICCT.2003.176878","url":null,"abstract":"Abstruct- In 3G wireless systems the volume of data traftie is expected to be larger on the forward link than the reverse link This is one of the main reasons that contribute to the forward link being the limiting link for the capacity of 3C CDMA systems, Many different algorithms interact in complex ways to affect the achieved capacity and define the system’s operation and coverage. This work studies the impact of system algorithms and their parameters, like maximum base station power, power partitioning between overhead and traffic, and connection blocking algorithms. It examines their effect on forward link performance (e.g. capacity, coverage, call blocking and dropout probabilities). A dynamic system simulator is used to examine how these algorithms, and their parameters affect the sytem capacity/coverage tradeoff. KqtwordMDMA; forward link; capaciv; coverage; 36","PeriodicalId":237858,"journal":{"name":"International Conference on Communication Technology Proceedings, 2003. ICCT 2003.","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134007565","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 : 2003-04-09DOI: 10.1109/ICCT.2003.1209259
Tong Ye, Qingji Zeng, Zhizhong Zhang, Jie Yang, Guolong Zhu
Previous dynamic resource allocation method (separate path selection, SPS) for a survivable network is always separated into two steps, that is, determine a primary path first and then select a backup path for the primary path. In this paper we analyze the drawback of the traditional SPS technique and propose an efficient shared protection method called M/spl I.bar/SPS. Instead of rejecting an arrival call immediately when a backup lightpath for the optimal primary lightpath cannot be found, M/spl I.bar/SPS continue to try the sub-optimal one until a legal primary-backup pair can be selected. We apply M/spl I.bar/SPS to CERNET/spl I.bar/Like and NSFNET networks. Simulation results show that M/spl I.bar/SPS improves the network performance remarkably.
{"title":"An improved method for guaranteed shared protection in WDM optical networks","authors":"Tong Ye, Qingji Zeng, Zhizhong Zhang, Jie Yang, Guolong Zhu","doi":"10.1109/ICCT.2003.1209259","DOIUrl":"https://doi.org/10.1109/ICCT.2003.1209259","url":null,"abstract":"Previous dynamic resource allocation method (separate path selection, SPS) for a survivable network is always separated into two steps, that is, determine a primary path first and then select a backup path for the primary path. In this paper we analyze the drawback of the traditional SPS technique and propose an efficient shared protection method called M/spl I.bar/SPS. Instead of rejecting an arrival call immediately when a backup lightpath for the optimal primary lightpath cannot be found, M/spl I.bar/SPS continue to try the sub-optimal one until a legal primary-backup pair can be selected. We apply M/spl I.bar/SPS to CERNET/spl I.bar/Like and NSFNET networks. Simulation results show that M/spl I.bar/SPS improves the network performance remarkably.","PeriodicalId":237858,"journal":{"name":"International Conference on Communication Technology Proceedings, 2003. ICCT 2003.","volume":"291 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132214402","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 : 2003-04-09DOI: 10.1109/ICCT.2003.1209772
Tao Xiaofeng, Shang Dan, Ni Li, Zhang Ping
For the third generation systems' low frequency efficiency and small system capacity, there should be greatly changed in physical techniques in fourth generation mobile communication systems while many advanced techniques suited for high bit rate, high frequency efficiency and large dynamic range, such as JT, STC, MIMO, OFDMA, distributed antenna, are taken into considerations. But besides physical techniques, basic network layer techniques, e.g., the constructions of cellular and the modes of handover, must be broken through in the fourth generation mobile communication systems. The group cell structure proposed in WTI is a novel cellular construction method, which is fit well for these new advanced physical techniques. And slide handover is also novel handover mode emphasized in this paper. According to the current research, the slide handover could improve the system capacity dynamically.
{"title":"Group cells and slide handover mode","authors":"Tao Xiaofeng, Shang Dan, Ni Li, Zhang Ping","doi":"10.1109/ICCT.2003.1209772","DOIUrl":"https://doi.org/10.1109/ICCT.2003.1209772","url":null,"abstract":"For the third generation systems' low frequency efficiency and small system capacity, there should be greatly changed in physical techniques in fourth generation mobile communication systems while many advanced techniques suited for high bit rate, high frequency efficiency and large dynamic range, such as JT, STC, MIMO, OFDMA, distributed antenna, are taken into considerations. But besides physical techniques, basic network layer techniques, e.g., the constructions of cellular and the modes of handover, must be broken through in the fourth generation mobile communication systems. The group cell structure proposed in WTI is a novel cellular construction method, which is fit well for these new advanced physical techniques. And slide handover is also novel handover mode emphasized in this paper. According to the current research, the slide handover could improve the system capacity dynamically.","PeriodicalId":237858,"journal":{"name":"International Conference on Communication Technology Proceedings, 2003. ICCT 2003.","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132295416","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 : 2003-04-09DOI: 10.1109/ICCT.2003.1209663
Zhiming Yin, Jianying Xie, P. Lv
Power control is one of the major challenges in radio resource management in wireless CDMA networks. Traditional power control scheme mainly concerns real-time voice services in mobile communications systems. In this paper, we present a new utility function with pricing and propose an economic model using game theory for uplink power control for data services in wireless CDMA networks. Based on the model we propose a synchronous distributed power control algorithm. Numerical simulations are conducted to demonstrate the performance of the algorithm. We investigate the pricing factor on the performance of the system. The results show the performance of convergence of the algorithm is satisfactory.
{"title":"An economic model for power control in wireless CDMA data networks","authors":"Zhiming Yin, Jianying Xie, P. Lv","doi":"10.1109/ICCT.2003.1209663","DOIUrl":"https://doi.org/10.1109/ICCT.2003.1209663","url":null,"abstract":"Power control is one of the major challenges in radio resource management in wireless CDMA networks. Traditional power control scheme mainly concerns real-time voice services in mobile communications systems. In this paper, we present a new utility function with pricing and propose an economic model using game theory for uplink power control for data services in wireless CDMA networks. Based on the model we propose a synchronous distributed power control algorithm. Numerical simulations are conducted to demonstrate the performance of the algorithm. We investigate the pricing factor on the performance of the system. The results show the performance of convergence of the algorithm is satisfactory.","PeriodicalId":237858,"journal":{"name":"International Conference on Communication Technology Proceedings, 2003. ICCT 2003.","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132350766","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 : 2003-04-09DOI: 10.1109/ICCT.2003.1209085
Zhen Chen, Zengji Liu, Z. Qiu
In this paper, we propose the C1-networks, including the complete C1-networks and the incomplete C1-networks, which evolved from the B-networks. The main difference between the complete C1-network and the B-network is their connecting pattern between the stages. The available MINs to date are almost all restricted by the port number in the power of 2. The C1-network is not under the control of this restriction, hence, good flexibility is obtained. In addition, the single-buffer performance model is developed and evaluated, and some results are given.
{"title":"The C1-networks: a scalable multistage interconnection network with backward links for deflecting routing","authors":"Zhen Chen, Zengji Liu, Z. Qiu","doi":"10.1109/ICCT.2003.1209085","DOIUrl":"https://doi.org/10.1109/ICCT.2003.1209085","url":null,"abstract":"In this paper, we propose the C1-networks, including the complete C1-networks and the incomplete C1-networks, which evolved from the B-networks. The main difference between the complete C1-network and the B-network is their connecting pattern between the stages. The available MINs to date are almost all restricted by the port number in the power of 2. The C1-network is not under the control of this restriction, hence, good flexibility is obtained. In addition, the single-buffer performance model is developed and evaluated, and some results are given.","PeriodicalId":237858,"journal":{"name":"International Conference on Communication Technology Proceedings, 2003. ICCT 2003.","volume":"491 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133104701","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 : 2003-04-09DOI: 10.1109/ICCT.2003.1209105
Jinyang Shi, Yuehui Jin, Hui Huang, Dajiang Zhang
The stream control transmission protocol (SCTP) is a new general-purpose transport layer protocol developed by the IETF. Compared with TCP, SCTP has two distinct features: multi-homing and multi-stream. Our work investigates the SCTP performance in various network environments, and its availability for different applications. This paper proposes a SCTP multi-homing scheme as the transport layer solution for wireless multi-access networks, using GPRS for retransmission when WLAN connection is interfered, collided or congested. We also evaluate the transport protocol behaviors for e-commerce applications. Through the experiments based on the Linux kernel implementation, we find the SCTP scheme can provide better throughput and more robustness in wireless access networks.
{"title":"Experimental performance studies of SCTP in wireless access networks","authors":"Jinyang Shi, Yuehui Jin, Hui Huang, Dajiang Zhang","doi":"10.1109/ICCT.2003.1209105","DOIUrl":"https://doi.org/10.1109/ICCT.2003.1209105","url":null,"abstract":"The stream control transmission protocol (SCTP) is a new general-purpose transport layer protocol developed by the IETF. Compared with TCP, SCTP has two distinct features: multi-homing and multi-stream. Our work investigates the SCTP performance in various network environments, and its availability for different applications. This paper proposes a SCTP multi-homing scheme as the transport layer solution for wireless multi-access networks, using GPRS for retransmission when WLAN connection is interfered, collided or congested. We also evaluate the transport protocol behaviors for e-commerce applications. Through the experiments based on the Linux kernel implementation, we find the SCTP scheme can provide better throughput and more robustness in wireless access networks.","PeriodicalId":237858,"journal":{"name":"International Conference on Communication Technology Proceedings, 2003. ICCT 2003.","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134095038","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 : 2003-04-09DOI: 10.1109/ICCT.2003.1209839
Zhang Zhiqiang, Qu Xuesong, Chen Ju, Shi Yaqing, Neng Luoming
After the management environments of multitechnology connection service are analyzed, the MCSMF based on workflow management is presented, which automates MCS management processes with flexibility and scalability. The implementation based CORBA is also given.
{"title":"An approach to the management of multitechnology connection service based on workflow management","authors":"Zhang Zhiqiang, Qu Xuesong, Chen Ju, Shi Yaqing, Neng Luoming","doi":"10.1109/ICCT.2003.1209839","DOIUrl":"https://doi.org/10.1109/ICCT.2003.1209839","url":null,"abstract":"After the management environments of multitechnology connection service are analyzed, the MCSMF based on workflow management is presented, which automates MCS management processes with flexibility and scalability. The implementation based CORBA is also given.","PeriodicalId":237858,"journal":{"name":"International Conference on Communication Technology Proceedings, 2003. ICCT 2003.","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130329168","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 : 2003-04-09DOI: 10.1109/ICCT.2003.1209775
G. Razzano, A. Curcio
Three connection admission control (CAC) algorithms are described and compared via computer simulations by referring to the novel WIND-FLEX wireless LAN, recently developed in the framework of a European IST project. The three CAC solutions employ different strategies to estimate the link utilization, thus giving different performance in terms of number of refused connections and network throughput. The first solution is characterized by reduced complexity by unsatisfactory performance. The other two methods, exhibit much better performance at a reasonable complexity increase. So, they are good candidates for practical applications.
{"title":"Performance comparison of three call admission control algorithms in a wireless ad-hoc network","authors":"G. Razzano, A. Curcio","doi":"10.1109/ICCT.2003.1209775","DOIUrl":"https://doi.org/10.1109/ICCT.2003.1209775","url":null,"abstract":"Three connection admission control (CAC) algorithms are described and compared via computer simulations by referring to the novel WIND-FLEX wireless LAN, recently developed in the framework of a European IST project. The three CAC solutions employ different strategies to estimate the link utilization, thus giving different performance in terms of number of refused connections and network throughput. The first solution is characterized by reduced complexity by unsatisfactory performance. The other two methods, exhibit much better performance at a reasonable complexity increase. So, they are good candidates for practical applications.","PeriodicalId":237858,"journal":{"name":"International Conference on Communication Technology Proceedings, 2003. ICCT 2003.","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115369494","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 : 2003-04-09DOI: 10.1109/ICCT.2003.1209735
Yi Yang, Yue Wu, Hongsen Yan
The use of multiple antennas at the transmitter and receiver results in enormous capacity increase. However, the performance of many current space-time architectures like vertical Bell Laboratories layered space-time (V-BLAST) is not optimal in the maximum likelihood (ML) sense. In this paper, we propose a new detection algorithm that aims at improving the detection performance. The algorithm combines optimal detection and original V-BLAST detection algorithm using fuzzy logic control (FLC). With little increase in the computational power, a fairly significant improvement in error performance over original V-BLAST algorithm is achieved. Moreover, any in-between performance-complexity can be achieved by appropriately choosing parameters.
{"title":"Using fuzzy control to improve detection algorithm in V-BLAST system","authors":"Yi Yang, Yue Wu, Hongsen Yan","doi":"10.1109/ICCT.2003.1209735","DOIUrl":"https://doi.org/10.1109/ICCT.2003.1209735","url":null,"abstract":"The use of multiple antennas at the transmitter and receiver results in enormous capacity increase. However, the performance of many current space-time architectures like vertical Bell Laboratories layered space-time (V-BLAST) is not optimal in the maximum likelihood (ML) sense. In this paper, we propose a new detection algorithm that aims at improving the detection performance. The algorithm combines optimal detection and original V-BLAST detection algorithm using fuzzy logic control (FLC). With little increase in the computational power, a fairly significant improvement in error performance over original V-BLAST algorithm is achieved. Moreover, any in-between performance-complexity can be achieved by appropriately choosing parameters.","PeriodicalId":237858,"journal":{"name":"International Conference on Communication Technology Proceedings, 2003. ICCT 2003.","volume":"209 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114287046","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 : 2003-04-09DOI: 10.1109/ICCT.2003.1209157
Hongsheng Song, Yunbin Xu, Xuan Gui, Jie Zhang, W. Gu
Intelligent optical network (ION) is deemed the representation of next generation optical networks, which can realize fast establishment of connections, automatic resource discovery, traffic engineering and many other intelligent functions. Compared with traditional network management, ION management has some new characteristics due to the introduction of intelligent control plane and deserves deeper research. In this paper, we proposed an inter-domain layered ION management system scheme dealing with the multi-domain network environment. And the management information models designed for ION are presented, especially that for the control plane and three connection types. Then we discuss the key technologies, which we use to implement the ION management system, for instance DML, Java and CORBA. At last, the simulation results of the ION management system are showed.
{"title":"Design and implementation of intelligent optical network management system","authors":"Hongsheng Song, Yunbin Xu, Xuan Gui, Jie Zhang, W. Gu","doi":"10.1109/ICCT.2003.1209157","DOIUrl":"https://doi.org/10.1109/ICCT.2003.1209157","url":null,"abstract":"Intelligent optical network (ION) is deemed the representation of next generation optical networks, which can realize fast establishment of connections, automatic resource discovery, traffic engineering and many other intelligent functions. Compared with traditional network management, ION management has some new characteristics due to the introduction of intelligent control plane and deserves deeper research. In this paper, we proposed an inter-domain layered ION management system scheme dealing with the multi-domain network environment. And the management information models designed for ION are presented, especially that for the control plane and three connection types. Then we discuss the key technologies, which we use to implement the ION management system, for instance DML, Java and CORBA. At last, the simulation results of the ION management system are showed.","PeriodicalId":237858,"journal":{"name":"International Conference on Communication Technology Proceedings, 2003. ICCT 2003.","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117153726","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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