Pub Date : 2008-09-16DOI: 10.1504/IJIPT.2009.024168
S. Milani, G. Calvagno, R. Bernardini, P. Zontone
The paper presents two cross-layer optimization strategies based on the IEEE 802.11e standard that enable a robust video transmission using adaptively forward error correction (FEC) channel codes at transport layer and a multiple description coding (MDC) architecture. The first approach estimates an array of correlation measures for the group of picture to be transmitted and classifies it using a vector quantizer. The most appropriate coding mode is selected according to the correlation class and the channel conditions obtained through a cross-layer signalling protocol. The second solution relies on a parametric model of the channel distortion based on the percentage of null quantized transform coefficients, which can be obtained during the coding operations. According to the state of the network, the optimization algorithm estimates the expected quality of the reconstructed sequence for each mode and chooses the best one. Experimental results show that both algorithms perform well with a small computational effort but different playout delays.
{"title":"Cross-Layer Joint Optimization of FEC Channel Codes and Multiple Description Coding for Video Delivery over IEEE 802.11e Links","authors":"S. Milani, G. Calvagno, R. Bernardini, P. Zontone","doi":"10.1504/IJIPT.2009.024168","DOIUrl":"https://doi.org/10.1504/IJIPT.2009.024168","url":null,"abstract":"The paper presents two cross-layer optimization strategies based on the IEEE 802.11e standard that enable a robust video transmission using adaptively forward error correction (FEC) channel codes at transport layer and a multiple description coding (MDC) architecture. The first approach estimates an array of correlation measures for the group of picture to be transmitted and classifies it using a vector quantizer. The most appropriate coding mode is selected according to the correlation class and the channel conditions obtained through a cross-layer signalling protocol. The second solution relies on a parametric model of the channel distortion based on the percentage of null quantized transform coefficients, which can be obtained during the coding operations. According to the state of the network, the optimization algorithm estimates the expected quality of the reconstructed sequence for each mode and chooses the best one. Experimental results show that both algorithms perform well with a small computational effort but different playout delays.","PeriodicalId":247507,"journal":{"name":"2008 The Second International Conference on Next Generation Mobile Applications, Services, and Technologies","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125180599","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}
In this paper we present an open source platform for mobile services execution and creation that has been ported to work into the IMS architecture. The platform has been developed in the context of the simple mobile services research project and it includes a mobile client called MOVE (Mobile Open and Very Easy) developed using the Java 2 Micro Edition (J2ME) platform. The paper describes the features of the service execution/creation platforms, then it shortly introduces the IMS (IP multimedia subsystem), finally it describes the process of porting the simple mobile services architectural elements into the IMS architecture.
在本文中，我们提供了一个用于移动服务执行和创建的开源平台，该平台已被移植到IMS体系结构中。该平台是在简单移动服务研究项目的背景下开发的，它包括一个使用Java 2 Micro Edition (J2ME)平台开发的名为MOVE (mobile Open and Very Easy)的移动客户端。本文首先介绍了业务执行/创建平台的特点，然后简要介绍了IMS (IP多媒体子系统)，最后描述了将简单的移动业务体系结构元素移植到IMS体系结构中的过程。
{"title":"Simple Mobile Services for IMS","authors":"A. Polidoro, S. Salsano, Giovanni Bartolomeo","doi":"10.1109/NGMAST.2008.67","DOIUrl":"https://doi.org/10.1109/NGMAST.2008.67","url":null,"abstract":"In this paper we present an open source platform for mobile services execution and creation that has been ported to work into the IMS architecture. The platform has been developed in the context of the simple mobile services research project and it includes a mobile client called MOVE (Mobile Open and Very Easy) developed using the Java 2 Micro Edition (J2ME) platform. The paper describes the features of the service execution/creation platforms, then it shortly introduces the IMS (IP multimedia subsystem), finally it describes the process of porting the simple mobile services architectural elements into the IMS architecture.","PeriodicalId":247507,"journal":{"name":"2008 The Second International Conference on Next Generation Mobile Applications, Services, and Technologies","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126454179","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}
This paper presents a multi-facet requirement assessment approach for specifying and relating potential business-to-customer mobile tourism services. An integrated requirement model of mobile tourism services including search & notification, community, tour-guide, recommendation, auction, and transaction & payment services is formulated and validated. Three surveys are conducted to collect data from tourists, 3G operators, and travel agencies for assessing usefulness, importance, feasibility, and effectiveness, as well as for illustrating structural relationships of these services. Survey results and implications serve as a valuable guidance for helping mobile service providers in the tourism domain to improve their services for meeting customers' needs.
{"title":"A Multi-facet Requirement Assessment of Customer-Oriented Mobile Tourism Services","authors":"Chien-Chih Yu, H. Chang","doi":"10.1109/NGMAST.2008.53","DOIUrl":"https://doi.org/10.1109/NGMAST.2008.53","url":null,"abstract":"This paper presents a multi-facet requirement assessment approach for specifying and relating potential business-to-customer mobile tourism services. An integrated requirement model of mobile tourism services including search & notification, community, tour-guide, recommendation, auction, and transaction & payment services is formulated and validated. Three surveys are conducted to collect data from tourists, 3G operators, and travel agencies for assessing usefulness, importance, feasibility, and effectiveness, as well as for illustrating structural relationships of these services. Survey results and implications serve as a valuable guidance for helping mobile service providers in the tourism domain to improve their services for meeting customers' needs.","PeriodicalId":247507,"journal":{"name":"2008 The Second International Conference on Next Generation Mobile Applications, Services, and Technologies","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129936057","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}
Internet applications, such as Email, VoIP and WWW, have been enhanced with many features. However, the introduction and modification of features may result in undesired behaviors, and this effect is known as feature interaction-FI. FI resolution may be implemented by a Feature Manager, which is directed by a set of interdiction formulas. On the other hand, the approach by interdiction may eliminate all features candidate for execution, and this result on a feature denial of service. In this paper we analyze how feature denial of service can be detected, with a design stage algorithm. The detection algorithm has a time complexity of the quadratic of interdiction formulas.
{"title":"Identification of Feature Denial of Services","authors":"R. G. Crespo","doi":"10.1109/NGMAST.2008.14","DOIUrl":"https://doi.org/10.1109/NGMAST.2008.14","url":null,"abstract":"Internet applications, such as Email, VoIP and WWW, have been enhanced with many features. However, the introduction and modification of features may result in undesired behaviors, and this effect is known as feature interaction-FI. FI resolution may be implemented by a Feature Manager, which is directed by a set of interdiction formulas. On the other hand, the approach by interdiction may eliminate all features candidate for execution, and this result on a feature denial of service. In this paper we analyze how feature denial of service can be detected, with a design stage algorithm. The detection algorithm has a time complexity of the quadratic of interdiction formulas.","PeriodicalId":247507,"journal":{"name":"2008 The Second International Conference on Next Generation Mobile Applications, Services, and Technologies","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130700139","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}
The recent boom in radio access technologies and their diversification have opened the way to new studies on quality of services (QoS) management in such heterogeneous environments. Indeed, the need for efficient QoS mechanisms is increasing since these new technologies provide scarce resources (e.g. unpredictable bandwidth and variable error rates). In this environment, nomadic hosts have a greater choice of access technologies. Thus, keeping the same QoS level for one user's application, anywhere user is connecting, may require some mechanisms to control QoS in each target network. In this framework, we propose to adopt a proactive and dynamic negotiation approach coupled with the hand over decision algorithm implemented in (L. Suciu et al., 2007). In this approach, decision parameters (e.g. throughput, transmission delay, etc.) can be distributed between several hierarchical entities in the network. If one decision parameter's value should be negotiated, negotiation process will be immediately started before taking the hand over decision. A comparison of several QoS parameter distributions (e.g. QoS parameters are stored either in mobile terminal or in control entity located more or less deeply in the core network) has been carried out thanks to a mathematical model, which takes into account the size of all messages necessary to achieve QoS parameter negotiation during a mobility scenario.
近年来无线电接入技术的蓬勃发展及其多样化为异构环境下服务质量(QoS)管理的新研究开辟了道路。事实上，由于这些新技术提供了稀缺的资源(例如，不可预测的带宽和可变的错误率)，对有效的QoS机制的需求正在增加。在这种环境中，游牧主机有更多的访问技术选择。因此，无论用户在何处连接，为一个用户的应用程序保持相同的QoS级别，可能需要一些机制来控制每个目标网络中的QoS。在这个框架中，我们建议采用一种主动和动态的协商方法，并结合(L. Suciu et al.， 2007)中实现的移交决策算法。在这种方法中，决策参数(如吞吐量、传输延迟等)可以分布在网络中的多个分层实体之间。如果需要协商某一决策参数的值，则立即启动协商过程，然后再进行移交决策。通过一个数学模型，对几种QoS参数分布(例如，QoS参数存储在移动终端或位于核心网或多或少深处的控制实体中)进行了比较，该模型考虑了在移动场景中实现QoS参数协商所需的所有消息的大小。
{"title":"A Proactive and Distributed QoS Negotiation Approach for Heterogeneous Environments: An Evaluation of QoS Signalling Overhead","authors":"A. Zouari, L. Suciu, J. Bonnin, K. Guillouard","doi":"10.1109/NGMAST.2008.55","DOIUrl":"https://doi.org/10.1109/NGMAST.2008.55","url":null,"abstract":"The recent boom in radio access technologies and their diversification have opened the way to new studies on quality of services (QoS) management in such heterogeneous environments. Indeed, the need for efficient QoS mechanisms is increasing since these new technologies provide scarce resources (e.g. unpredictable bandwidth and variable error rates). In this environment, nomadic hosts have a greater choice of access technologies. Thus, keeping the same QoS level for one user's application, anywhere user is connecting, may require some mechanisms to control QoS in each target network. In this framework, we propose to adopt a proactive and dynamic negotiation approach coupled with the hand over decision algorithm implemented in (L. Suciu et al., 2007). In this approach, decision parameters (e.g. throughput, transmission delay, etc.) can be distributed between several hierarchical entities in the network. If one decision parameter's value should be negotiated, negotiation process will be immediately started before taking the hand over decision. A comparison of several QoS parameter distributions (e.g. QoS parameters are stored either in mobile terminal or in control entity located more or less deeply in the core network) has been carried out thanks to a mathematical model, which takes into account the size of all messages necessary to achieve QoS parameter negotiation during a mobility scenario.","PeriodicalId":247507,"journal":{"name":"2008 The Second International Conference on Next Generation Mobile Applications, Services, and Technologies","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130079493","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}
Nowadays, sharing multimedia contents in P2P systems has become a common practice. In general, it is done in "download" mode as any other type of data. However, due to their huge volume and real time constraint, multimedia data present another consumption mode which is the streaming mode. In this mode, rather than downloading the entire data before viewing it, it initiates a stream from the source peer to the destination one. The advantages of this mode are numerous such as latency reduction, copyright preservation (in the sense that the consumption peer does not hold the multimedia content), etc. Nevertheless, due to the unpredictable departure of peers and the real time constraint of the consumed data, the problem of maintaining data availability remains open. In this paper we propose to set up a cache to save the "last part" of the "now playing" videos. We demonstrate that such a cache can enhance the data availability in these systems while introducing an acceptable additional traffic. Additionally, we develop a cache management policy that automatically adapts the size of the cached data to the system workload. The simulations we conducted show the effectiveness of our approach.
{"title":"Data Availability in P2P Streaming Systems","authors":"H. Alustwani, J. Bahi, A. Mostefaoui","doi":"10.1109/NGMAST.2008.36","DOIUrl":"https://doi.org/10.1109/NGMAST.2008.36","url":null,"abstract":"Nowadays, sharing multimedia contents in P2P systems has become a common practice. In general, it is done in \"download\" mode as any other type of data. However, due to their huge volume and real time constraint, multimedia data present another consumption mode which is the streaming mode. In this mode, rather than downloading the entire data before viewing it, it initiates a stream from the source peer to the destination one. The advantages of this mode are numerous such as latency reduction, copyright preservation (in the sense that the consumption peer does not hold the multimedia content), etc. Nevertheless, due to the unpredictable departure of peers and the real time constraint of the consumed data, the problem of maintaining data availability remains open. In this paper we propose to set up a cache to save the \"last part\" of the \"now playing\" videos. We demonstrate that such a cache can enhance the data availability in these systems while introducing an acceptable additional traffic. Additionally, we develop a cache management policy that automatically adapts the size of the cached data to the system workload. The simulations we conducted show the effectiveness of our approach.","PeriodicalId":247507,"journal":{"name":"2008 The Second International Conference on Next Generation Mobile Applications, Services, and Technologies","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114413127","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}
The paper introduces a new approach to data-driven peer-to-peer media streaming. While classical algorithms send buffer maps and run scheduling periodically, we experiment by continuously sending incremental notifications of buffer contents and by running a continuous scheduling process. The approach has been tested both in a network simulator and in a small network of smart phones with live video content. The protocol seems to adapt quickly to changing data rate or churn without producing intolerable overhead. The approach leads to small latency and strong peer equality and may thus ease neighbor management. The end-to-end delay is small and one may alleviate a need for large buffers.
{"title":"Continuous Scheduling for Data-Driven Peer-to-Peer Streaming","authors":"J. Akkanen","doi":"10.1109/NGMAST.2008.33","DOIUrl":"https://doi.org/10.1109/NGMAST.2008.33","url":null,"abstract":"The paper introduces a new approach to data-driven peer-to-peer media streaming. While classical algorithms send buffer maps and run scheduling periodically, we experiment by continuously sending incremental notifications of buffer contents and by running a continuous scheduling process. The approach has been tested both in a network simulator and in a small network of smart phones with live video content. The protocol seems to adapt quickly to changing data rate or churn without producing intolerable overhead. The approach leads to small latency and strong peer equality and may thus ease neighbor management. The end-to-end delay is small and one may alleviate a need for large buffers.","PeriodicalId":247507,"journal":{"name":"2008 The Second International Conference on Next Generation Mobile Applications, Services, and Technologies","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133365925","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}
Luis López Fernández, Micael Gallego Carrillo, J. Peláez, Francisco Javier López Fernández
In this paper we present Palpatine, an IMS application server providing a point-to-multi-point video share delivery service where a video share capable 3G device can capture audio and video in real time and send it lively to a group of 3G terminals wishing to receive it. Palpatine integrates seamlessly into IMS infrastructures without requiring any network modification and fulfilling all required standards. For this reason, Palpatine can be directly used over any IMS-compliant network without requiring the installation of any external application on current commercial video share capable mobile devices.
{"title":"Palpatine: A P2MP IMS Video Share Architecture and Implementation","authors":"Luis López Fernández, Micael Gallego Carrillo, J. Peláez, Francisco Javier López Fernández","doi":"10.1109/NGMAST.2008.30","DOIUrl":"https://doi.org/10.1109/NGMAST.2008.30","url":null,"abstract":"In this paper we present Palpatine, an IMS application server providing a point-to-multi-point video share delivery service where a video share capable 3G device can capture audio and video in real time and send it lively to a group of 3G terminals wishing to receive it. Palpatine integrates seamlessly into IMS infrastructures without requiring any network modification and fulfilling all required standards. For this reason, Palpatine can be directly used over any IMS-compliant network without requiring the installation of any external application on current commercial video share capable mobile devices.","PeriodicalId":247507,"journal":{"name":"2008 The Second International Conference on Next Generation Mobile Applications, Services, and Technologies","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130539689","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}
Trends in fourth generation (4G) wireless networks are clearly identified by the full-IP concept where all traffic (data, control, voice and video services,etc.) will be transported in IP packets. Many proposals are being made to enhance IP with the functionalities necessary to manage the mobility of nodes, so that networks can provide global seamless roaming between heterogeneous wireless and wired networks. OLSR (Optimized Link State Routing) is that way for IPv6 management, this cause of reduction of overhead and recovery routing. OLSR for adhoc networks with fast nodes have poor efficiency therefore kind of OLSR that named fast-OLSR is proposed. In this paper, we propose implementation of fast-OLSR for improvement efficiency of fourh generation (4G) mobile networks. In this implementation, use IP protocol for macro-mobility management and for micro-mobility use fast-OLSR to manage mobility. Efficiency evaluation show that loss rate proportion of use OLSR is decrease. As a result increase reliability of services.
{"title":"Mobility Management with OLSR Protocol for Fourth Generation (4G) Mobile Networks","authors":"S. Jazayeri","doi":"10.1109/NGMAST.2008.12","DOIUrl":"https://doi.org/10.1109/NGMAST.2008.12","url":null,"abstract":"Trends in fourth generation (4G) wireless networks are clearly identified by the full-IP concept where all traffic (data, control, voice and video services,etc.) will be transported in IP packets. Many proposals are being made to enhance IP with the functionalities necessary to manage the mobility of nodes, so that networks can provide global seamless roaming between heterogeneous wireless and wired networks. OLSR (Optimized Link State Routing) is that way for IPv6 management, this cause of reduction of overhead and recovery routing. OLSR for adhoc networks with fast nodes have poor efficiency therefore kind of OLSR that named fast-OLSR is proposed. In this paper, we propose implementation of fast-OLSR for improvement efficiency of fourh generation (4G) mobile networks. In this implementation, use IP protocol for macro-mobility management and for micro-mobility use fast-OLSR to manage mobility. Efficiency evaluation show that loss rate proportion of use OLSR is decrease. As a result increase reliability of services.","PeriodicalId":247507,"journal":{"name":"2008 The Second International Conference on Next Generation Mobile Applications, Services, and Technologies","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124700468","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}
The future of wireless networking is envisioned as an integrated system of wireless radio access technologies with heterogeneous features. This heterogeneity combined with the characteristic diversity of provided services create promising opportunities for improving the utility of both operators and users. In this paper, we investigate the opportunity to reduce the average cost of streaming sessions by benefiting from the system embedded heterogeneity and streaming application buffering capability. First, we analyze the optimal streaming strategy for a theoretical infinite session. Based on this analysis, we propose pseudo-optimal and greedy-optimal adaptive media streaming algorithms for heterogeneous wireless networks. The performance of these algorithms is compared to a naive greedy streaming approach using NS2 simulations. The results show that the greedy-optimal algorithm reduces the average session cost down to 73.9% of the average cost incurred on using greedy algorithm. This cost saving is realized at an insignificant increase in signaling load and session blocking probability. Hence, we strongly recommend the developed greedy-optimal algorithm for media streaming in next-generation heterogeneous wireless networks.
{"title":"Cost Efficient Media Streaming Algorithms for Rate-Dependent Pricing Strategies in Heterogeneous Wireless Networks","authors":"A. Zahran, C. Sreenan","doi":"10.1109/NGMAST.2008.32","DOIUrl":"https://doi.org/10.1109/NGMAST.2008.32","url":null,"abstract":"The future of wireless networking is envisioned as an integrated system of wireless radio access technologies with heterogeneous features. This heterogeneity combined with the characteristic diversity of provided services create promising opportunities for improving the utility of both operators and users. In this paper, we investigate the opportunity to reduce the average cost of streaming sessions by benefiting from the system embedded heterogeneity and streaming application buffering capability. First, we analyze the optimal streaming strategy for a theoretical infinite session. Based on this analysis, we propose pseudo-optimal and greedy-optimal adaptive media streaming algorithms for heterogeneous wireless networks. The performance of these algorithms is compared to a naive greedy streaming approach using NS2 simulations. The results show that the greedy-optimal algorithm reduces the average session cost down to 73.9% of the average cost incurred on using greedy algorithm. This cost saving is realized at an insignificant increase in signaling load and session blocking probability. Hence, we strongly recommend the developed greedy-optimal algorithm for media streaming in next-generation heterogeneous wireless networks.","PeriodicalId":247507,"journal":{"name":"2008 The Second International Conference on Next Generation Mobile Applications, Services, and Technologies","volume":"123 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124188638","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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