2011 Australasian Telecommunication Networks and Applications Conference (ATNAC)最新文献_第2页

A green and secure authentication for the 4th generation mobile network 绿色安全的第四代移动网络认证

2011 Australasian Telecommunication Networks and Applications Conference (ATNAC) Pub Date : 2011-12-08 DOI: 10.1109/ATNAC.2011.6096633

L. Gu, M. Gregory

{"title":"A green and secure authentication for the 4th generation mobile network","authors":"L. Gu, M. Gregory","doi":"10.1109/ATNAC.2011.6096633","DOIUrl":"https://doi.org/10.1109/ATNAC.2011.6096633","url":null,"abstract":"The 4th generation (4G) mobile access network and the core network are evolving towards a secure, fast, and Internet Protocol-based network. With the emergence of next generation battery-powered smart mobile phone and open source application platforms, security and the terminal's energy consumption have become big issues. Long Term Evolution (LTE) is one of the most popular 4G technologies defined by 3rd Generation Partnership Projects (3GPP). It is observed that the end user requires two authentication steps to access multimedia services. The first is the LTE network layer authentication, and the second is the IP Multimedia Subsystem (IMS) service layer authentication. The authentication steps utilize energy and are carried out using the Authentication and Key Agreement (AKA) protocol. This paper proposes an Improved AKA (I-AKA) authentication protocol which authenticates the user on both the network layer and the service layer without double execution the AKA protocol and simplifies the authentication steps. Furthermore, the security and energy consumption were analyzed and the results showed the proposed I-AKA could save up to 81.82% of the terminal's energy consumption related to authentication with increased security.","PeriodicalId":210916,"journal":{"name":"2011 Australasian Telecommunication Networks and Applications Conference (ATNAC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129745332","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}

引用次数: 12

Monitoring access in advanced time zones to direct prefetching and so smooth access loads 监控高级时区的访问，以直接预取和平滑访问负载

2011 Australasian Telecommunication Networks and Applications Conference (ATNAC) Pub Date : 2011-12-08 DOI: 10.1109/ATNAC.2011.6096643

F. Rafiq, T. Moors

引用次数: 0

Upper and lower bounds for the Rice Ie-function Rice - ie函数的上下界

2011 Australasian Telecommunication Networks and Applications Conference (ATNAC) Pub Date : 2011-12-08 DOI: 10.1109/ATNAC.2011.6096659

P. Sofotasios, S. Freear

引用次数: 14

Vertical handoff decision and network merit for integrated wireless and mobile networks 无线和移动综合网络的垂直切换决策和网络性能

2011 Australasian Telecommunication Networks and Applications Conference (ATNAC) Pub Date : 2011-12-08 DOI: 10.1109/ATNAC.2011.6096635

S. Kunarak, R. Suleesathira

{"title":"Vertical handoff decision and network merit for integrated wireless and mobile networks","authors":"S. Kunarak, R. Suleesathira","doi":"10.1109/ATNAC.2011.6096635","DOIUrl":"https://doi.org/10.1109/ATNAC.2011.6096635","url":null,"abstract":"Next generation wireless networks must be able to coordinate services between heterogeneous networks using a mobile terminal with multiple access interfaces. One of the challenges for continuous seamless mobility is vertical handoff which is the decision for a mobile node to switch for one network to another different type of networks. Moreover, how to select a desired target network is an important issue to balance against the network condition and user preferences. In this paper, the policies of multiple metrics to trigger a handoff while a mobile node is located in UMTS and WLAN/WiMAX are designed. The received signal strength (RSS) of neighbor networks predicted by the back propagation neural network is beneficial to perform handoff early. We propose a dwell time calculation depending to the user speed and moving pattern. If the RSS conditions are consistently true during dwell time, then unnecessary handoffs are avoidable. To select an optimal target network, policies in the merit function is presented. The weights of each handoff metric are dynamic to several networks. The results indicate that the proposed policy-enabled vertical handoff decision algorithm and network selection outperforms the other two approaches in reducing the number of vertical handoffs, Grade of Service (GoS) while increasing the average utilization per call of WLAN/WiMAX networks.","PeriodicalId":210916,"journal":{"name":"2011 Australasian Telecommunication Networks and Applications Conference (ATNAC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122394209","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}

引用次数: 7

Co-operative data access in multiple Road Side Units (RSUs)-based Vehicular Ad Hoc Networks (VANETs) 基于多个路旁单元(rsu)的车辆自组织网络(vanet)的协同数据访问

2011 Australasian Telecommunication Networks and Applications Conference (ATNAC) Pub Date : 2011-12-08 DOI: 10.1109/ATNAC.2011.6096651

G. Ali, E. Chan

{"title":"Co-operative data access in multiple Road Side Units (RSUs)-based Vehicular Ad Hoc Networks (VANETs)","authors":"G. Ali, E. Chan","doi":"10.1109/ATNAC.2011.6096651","DOIUrl":"https://doi.org/10.1109/ATNAC.2011.6096651","url":null,"abstract":"Nowadays, data dissemination using Road Side Units (RSUs) in Vehicular Ad Hoc Networks (VANETs) has received important consideration to assist the inter-vehicle communication for overcoming the vehicle to vehicle frequent disconnection problem. During rush hour, an RSU may be overloaded by many requests submitted by the vehicles. Due to strict realtime and short wireless transmission range coverage constraints, a heavily overloaded RSU may experience high deadline miss rate in effect of serving too many requests beyond its capacity. In this work, we investigate the vehicle submitted requests are generally two types: delay sensitive and delay tolerant. We propose a multiple-RSU model, which offers the opportunity to the RSUs suffering from handling high volume workload to transfer some of its delay tolerant requests to other RSUs, which have light workload and located in the direction in which the vehicle is heading. By a series of simulation experiments, we also support our multiple-RSU based co-operative load transferring model, which extensively outperforms the single independent RSU based VANETs model against a number of performance metrics.","PeriodicalId":210916,"journal":{"name":"2011 Australasian Telecommunication Networks and Applications Conference (ATNAC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124091197","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}

引用次数: 14

Rate partitioning for optimal quantization parameter selection in H.264 (SVC) based 4G broadcast/multicast wireless video communication 基于H.264 (SVC)的4G广播/组播无线视频通信中速率划分的最优量化参数选择

2011 Australasian Telecommunication Networks and Applications Conference (ATNAC) Pub Date : 2011-12-08 DOI: 10.1109/ATNAC.2011.6096647

Nitin Khanna, A. Jagannatham

{"title":"Rate partitioning for optimal quantization parameter selection in H.264 (SVC) based 4G broadcast/multicast wireless video communication","authors":"Nitin Khanna, A. Jagannatham","doi":"10.1109/ATNAC.2011.6096647","DOIUrl":"https://doi.org/10.1109/ATNAC.2011.6096647","url":null,"abstract":"In this paper we present a novel scheme for video quality maximization in the context of H.264 scalable video coding (SVC) based 4G wireless broadcast and multicast video transmission. A typical wireless multicast group comprises of multimedia clients with varying wireless link qualities. Thus, the conventional fair rate static video (FRSV) transmission scheme, which aims to achieve QoS fairness in multicast video transmission is rate and hence quality constrained by the BMG subscriber with the worst link capacity. Hence, we propose a novel rate partitioning based scalable video (RPSV) transmission framework to overcome this limitation. The proposed RPSV scheme optimally partitions the multicast group for transmission of the H.264 coded base and enhancement scalable video layers. This is based on the Medium Grain Scalability (MGS) feature for enhancement layer coding in H.264 SVC. We demonstrate that the optimal wireless link quality based BMG partition and the associated quantization, time-fraction parameters can be computed by solving a series of convex objective minimization problems. RPSV naturally leads to a significant enhancement in the net multicast group video quality by avoiding the rate bottleneck otherwise caused by the worst link user, while simultaneously resulting in QoS fairness by avoiding service starvation of the user with the poorest link quality. We compare the resulting video quality obtained from the proposed RPSV based quantization parameter adaptation paradigm with the performance of the simplistic FRSV scheme and demonstrate the superiority of the former.","PeriodicalId":210916,"journal":{"name":"2011 Australasian Telecommunication Networks and Applications Conference (ATNAC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129215281","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}

引用次数: 1

Enhancing network connectivity using smart mobile sensors 利用智能移动传感器加强网络连接

2011 Australasian Telecommunication Networks and Applications Conference (ATNAC) Pub Date : 2011-12-08 DOI: 10.1109/ATNAC.2011.6096673

A. A. Shukaili, N. Chilamkurti, P. Veeraraghavan

引用次数: 0

Call dropping performance of the relay station (RS)-first channel access scheme in LTE-Advanced relay networks LTE-Advanced中继网络中继站(RS)优先信道接入方案的掉话性能

2011 Australasian Telecommunication Networks and Applications Conference (ATNAC) Pub Date : 2011-12-08 DOI: 10.1109/ATNAC.2011.6096658

Xian Wang, S. Horng, R. Cheng, P. Fan

引用次数: 0

Wireless hop-by-hop credit-based flow control extended to source for stable best effort traffic 将基于逐跳信用的无线流量控制扩展到源，以获得稳定的最佳努力流量

2011 Australasian Telecommunication Networks and Applications Conference (ATNAC) Pub Date : 2011-12-08 DOI: 10.1109/ATNAC.2011.6096653

R. Schoenen, H. Yanikomeroglu

{"title":"Wireless hop-by-hop credit-based flow control extended to source for stable best effort traffic","authors":"R. Schoenen, H. Yanikomeroglu","doi":"10.1109/ATNAC.2011.6096653","DOIUrl":"https://doi.org/10.1109/ATNAC.2011.6096653","url":null,"abstract":"Data traffic is expected to grow faster than capacity in future wireless networks. Therefore it will become unavoidable to deal with congestion. Bottlenecks are located on the wireless links because back-haul and Internet are overprovisioned. Traffic routed towards the user terminal (UT) in down-link direction keeps coming in through a big pipe until it reaches the base station (BS). The following wireless links can only carry a limited data rate due to congestion. In a multi-hop situation buffers before the bottlenecks ramp up and become unstable, leading to packet loss. While real-time traffic is safe due to call admission control (CAC), highest static priority and over-provisioning, best effort data traffic experiences congestion and therefore packet losses. A wireless flow control based on a credit-based hop-by-hop concept can solve this problem by avoiding any buffer overflow completely. This paper proposes extending the closed flow control loops to the source, either by a genuine credit-based flow control or by TCP rate control with deep packet inspection and ACK modification. This paper analyses the queueing behavior with stochastic Petri nets models. Markov state analysis provides numeric performance results. The example scenario consists of two wireless relayed hops and a wired back-haul with different control approaches for the hop between source and bottleneck.","PeriodicalId":210916,"journal":{"name":"2011 Australasian Telecommunication Networks and Applications Conference (ATNAC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124834540","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}

引用次数: 5

Analysis of continuous time domain representation of OFDM signals OFDM信号的连续时域表示分析

2011 Australasian Telecommunication Networks and Applications Conference (ATNAC) Pub Date : 2011-12-08 DOI: 10.1109/ATNAC.2011.6096642

Kusha Panta, J. Armstrong

引用次数: 4