• Modeling the impact of clustering on the lifetime of wireless sensor networks 

    Madipour, Farhad; Rahman, M.F.; Murakami, K.J. (2015-03)
    Energy efficiency and network lifetime are the most critical issues for Wireless Sensor Networks (WSNs). Clustering is one of the well-known techniques for reducing energy consumption of the network and improving its ...
  • Computational land use management of public spaces in New Zealand 

    Dacey, Simon (2017)
    Land management is the process of managing the use and development of land resources, in both urban and rural settings. In all modern states, some land is held by central or local governments. This is called public land. ...
  • Performance monitoring of various network traffic generators 

    Kolahi, Samad; Narayan, Shaneel; Nguyen, D.D.T; Sunarto, Y. (Institute of Electrical and Electronics Engineers (IEEE), 2011-03-31)
    In this paper, in a laboratory environment, the performance of four network traffic generators (Iperf, Netperf, D-ITG and IP Traffic) are compared. Two computers with Windows operating systems were connected via a 100 Mbps ...
  • Analysis of results in simulation and modeling of CDMA systems 

    Kolahi, Samad (Institute of Electrical and Electronics Engineers (IEEE), 2007-07-01)
    In this paper, using discrete event stochastic simulation by batch-means, new results have been obtained by analysing the sensitivity of CDMA blocking probability for a given traffic load against various number of calls ...
  • Lounging with robots – social spaces of residents in care : a comparison trial 

    Peri, Kathryn; Kerse, Ngaire; Broadbent, Elizabeth; Jayawardena, Chandimal; Kuo, Tony; Datta, Chandan; Stafford, Rebecca; MacDonald, Bruce (Wiley Online Library, 2016)
    Aims: To investigate whether robots could reduce resident sleeping and stimulate activity in the lounges of an older persons’ care facility. Methods: Non-randomised controlled trial over a 12-week period. The ...
  • Analysing and identifying website personality by extending existing libraries 

    Chishti, Shafquat Ali (2016)
    Previously, website personality was only assessed and classified by human interaction. This brings with it a host of problems as humans act depending on their likes and dislikes. For example, if someone likes the particular ...
  • Performance comparison of IPv4 and IPv6 in peer-peer and client server local area networks 

    Kolahi, Samad; Soorty, Burjiz; Chand, Navneet; Qu, Zhang (Institute of Electrical and Electronics Engineers (IEEE), 2010-06-29)
    In this paper, the performance of IPv4 and IPv6 are compared for both Client-Server and Peer-Peer networks. For both networks, IPv4 produced higher bandwidth for TCP protocol. For UDP, IPv4 and IPv6 showed insignificant ...
  • Analysis of UDP DDoS floor cyber attack and defense mechanisms on web server with Linux Ubuntu 13 

    Kolahi, Samad; Treseangrat, Kiattiku; Sarrafpour, Bahman (Institute of Electrical and Electronics Engineers (IEEE), 2015-02-19)
    Denial of Service (DoS) attacks is one of the major threats and among the hardest security problems in the Internet world. Of particular concern are Distributed Denial of Service (DDoS) attacks, whose impact can be ...
  • Analysis of UDP DDoS cyber flood attack and defense mechanisms on Windows Server 2012 and Linux Ubuntu 13 

    Treseangrat, Kiattikul; Kolahi, Samad; Sarrafpour, Bahman (2015-07-15)
    Distributed Denial of Service (DoS) attacks is one of the major threats and among the hardest security problems in the Internet world. In this paper, we study the impact of a UDP flood attack on TCP throughputs, round-trip ...
  • An artifact-centric business process execution platform 

    Ngamakeur, Kan; Yongchareon, Dr. Sira; Liesaputra, Veronica; Liu, Chengfei; Yu, Jian (Institute of Electrical and Electronics Engineers (IEEE), 2016-09)
    Artifact-centric modeling has become an alternative, yet promising approach of business process (BP) modeling and management as it provides higher flexibility than that of traditional activity-centric approaches. However, ...
  • Physical-aware predictive dynamic thermal management of multi-core processors 

    Salami, Bagher; Noori, Hamid; Madipour, Farhad; Baharani, Mohammadreza (Elsevier, 2016-03-30)
    The advances in silicon process technology have made it possible to have processors with larger number of cores. The increment of cores number has been hindered by increasing power consumption and heat dissipation due to ...
  • Analysis of e-commerce sites using the 7C Framework, by developing a software tool 

    Yang, Chih-Hsiang (2016)
    Businesses are moving rapidly to leverage the internet to market and sell their products through virtual stores or websites. The success of an enterprise is directly linked to e-commerce quality, and for businesses to ...
  • Incremental and decremental max-flow for online semi-supervised learning 

    Zhu, Lei; Pang, Shaoning; Sarrafzadeh, Hossein; Ban, Tao; Inoue, Daisuke (Institute of Electrical and Electronics Engineers (IEEE), 2016-04-13)
    Max-flow has been adopted for semi-supervised data modelling, yet existing algorithms were derived only for the learning from static data. This paper proposes an online max-flow algorithm for the semi-supervised learning ...
  • Impact of SSL Security on bandwidth and delay in IEEE 802.11n WLAN Using Windows 7 

    Kolahi, Samad; Cao, Yuqing; Chen, Hong (Institute of Electrical and Electronics Engineers (IEEE), 2016-07-22)
    IPSec (IP Security) and SSL (Secure Socket Layer) are the main technologies for securing communications via the Internet. In this paper, we present new results on the performance of SSL using Windows 7 operating system ...
  • Designing mobile applications for smoking cessation in New Zealand 

    Baghaei, Nilufar; Wu, Lian; Casey, John; Biddle, TeUrikore (International Conference on Medical Information Processing and Analysis, 2016-06)
    Tobacco is a leading cause of preventable death in New Zealand. The smoking rate for New Zealand Māori was 44 percent in 2009, still significantly higher than for non-Māori (18 percent) for both males and females. In this ...
  • Bionic voice (pilot study) : natural speech restoration for voice impaired individuals 

    Sharifzadeh, Hamid; Allen, Jacqui; Sarrafzadeh, Hossein; Ardekani, Iman (Health Informatics New Zealand, 2016-11)
    The human voice is the most magnificent instrument for communication, capable of expressing deep emotions, conveying oral history through generations, or of starting a war. However, those who suffer from aphonia (no voice) ...
  • Performance analysis of 4to6 and 6to4 transition mechanisms over point to point and IPSec VPN protocols 

    Narayan, Shaneel; Ishrar, Salman; Kumar, Avinesh; Gupta, Ruchinav; Khan, Ziafil (2016-07)
    This paper provide an overview of behaviour of transition mechanisms, with and without VPN Protocols. Performance metrics related to networks have been gathered from test-bed implementations. The two transition mechanisms ...
  • SNET : a statistical normalisation method for Twitter 

    Sosamphan, Phavanh (2016)
    One of the major problems in the era of big data use is how to ‘clean’ the vast amount of data on the Internet, particularly data in the micro-blog website Twitter. Twitter enables people to connect with their friends, ...
  • Error signal measurement in active noise control systems 

    Sheth, Darshana; Ardekani, Iman (Asia-Pasific Signal Information Processing Association, 2015-08)
    Active noise control (ANC) creates a set of silent points at the location of error microphones. As a byproduct, a zone of quiet is created surrounding the silent points. Unfortunately, the extension of the created quite ...
  • The performance of IPv4 and IPv6 using UDP on IEEE 802.11n WLANS with WPA2 security. 

    Kolahi, Samad; Qu, Zhang; Soorty, Burjiz K.; Chand, Navneet (ACM Press, 2009-07-01)
    The IPv4 and IPv6 performance with UDP (User Datagram Protocol) on two client-server wireless 802.11n LANs implementing Windows Vista-Windows Server 2008 and Windows XP-Windows Server 2008 are compared. The impact of ...