Browsing Conference Papers by Author "Sandrasegaran, Kumbesan"

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Browsing Conference Papers by Author "Sandrasegaran, Kumbesan"

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  • Sandrasegaran, Kumbesan; Patachaianand, Rachod; Madani, Faisal (IEEE Coomunication Society, 2011)
    In this paper, a new feedback scheme is proposed for downlink OFDMA system with frequency domain packet scheduling to achieve multiuser diversity. Recent work showed that the multiuser diversity can be gained by using the ...
  • Sandrasegaran, Kumbesan; Patachaianand, Rachod; Madani, Faisal; Lin, Cheng-Chung (IEEE, 2010)
    In this paper, a new opportunistic feedback protocol for orthogonal frequency division multiple access (OFDMA) systems with mixed realtime (RT) and non-realtime (NRT) traffic is proposed and analysed. Based on the proposed ...
  • Nguyen, Sinh; Sandrasegaran, Kumbesan (IEEE, 2010)
    LTE-Advanced, 3GPPa??s proposal for IMTAdvanced or 4G, is quite complex network with coexistence of many types of user equipments in terms of radio access technology. Our current research projects have focused on LTE and ...
  • Lin, Cheng-Chung; Sandrasegaran, Kumbesan; Reeves, Scott (IEEE, 2012)
    LTE is a purely packet-switched radio access technology and improves the legacy systems by supporting higher data rates with low latency. Release 8 of LTE has a number of gaps that prevent it from meeting the IMT-Advanced ...
  • Mohd Ramli, Huda Adibah; Sandrasegaran, Kumbesan; Basukala, Riyaj (IEEE, 2011)
  • Sandrasegaran, Kumbesan; Patachaianand, Rachod; Madani, Faisal (IEEE, 2010)
    The paper deals with a modified version of opportunistic scheduling algorithm that exploits multiuser diversity. It incorporates the proportional fairness scheduling policy with the first-in-first-out (FIFO) policy to ...
  • Nguyen, Sinh; Sandrasegaran, Kumbesan; Madani, Faisal (IEEE Xplore, 2011)
    LTE-Advanced, the true 4G technology of 3GPP family, is a complex radio access technology with co-existence of many types of user equipments. As it is a new technology, there are few published research focusing on modeling ...
  • Lin, Cheng-Chung; Sandrasegaran, Kumbesan; Zhu, Xinning; Xu, Zhuliang (IEEE, 2012)
    Coordinated multipoint (CoMP) transmission and reception is the key technique in LTE-Advanced to improve the cell-edge throughput and/or system throughput. Joint processing (JP) in CoMP technology provides multiple ...
  • Patachaianand, Rachod; Sandrasegaran, Kumbesan; Mohd Ramli, Huda Adibah; Basukala, Riyaj (Springer, 2009)
    An opportunistic feedback protocol is proposed for orthogonal frequency division multiple access (OFDMA) systems with mixed realtime (RT) and non-realtime (NRT) traffic. This protocol allocates a dedicated feedback channel ...
  • Lin, Cheng-Chung; Sandrasegaran, Kumbesan; Mohd Ramli, Huda Adibah; Basukala, Riyaj; Patachaianand, Rachod; Chen, Lu; Afrin, Sohana (IEEE, 2011)
    Handover in LTE is purely hard handover. The use of break-before-connect handovers reduces the complexity of the LTE network architecture. However, the hard handover may result in data being lost. A Handover algorithm is ...
  • Basukala, Riyaj; Mohd Ramli, Huda Adibah; Sandrasegaran, Kumbesan (IEEE, 2009)
    This paper investigates the performance of exponential/proportional fair (EXP/PF) and maximum-largest weighted delay first (M-LWDF) scheduling algorithms in the third generation partnership project long term evolution (3GPP ...
  • Xue, Minjie; Sandrasegaran, Kumbesan; Mohd Ramli, Huda Adibah; Lin, Cheng-Chung (IEEE Computer Society, 2010)
    This paper evaluates the performance of two simple packet scheduling algorithms for real-time traffic in the third generation partnership project long term evolution (3GPP LTE) system. These algorithms, known as Algorithm ...
  • Patachaianand, Rachod; Sandrasegaran, Kumbesan (IEEE, 2008)
    This paper studies the performance of a real-time application in a live Universal Mobile Telecommunication System (UMTS) network. In the study, special user equipment (UE) capable of collecting performance parameters such ...
  • Daeinabi, Ameneh; Sandrasegaran, Kumbesan; Zhu, Xinning (ACM, 2013)
    System level simulations are required to evaluate the influences of cell planning, scheduling, or interference management methods on the performance of the new mobile network technologies. Interference is one of the important ...
  • Wu, Leijia; Al Sabbagh, Abdallah; Sandrasegaran, Kumbesan; Elkashlan, Maaged (IEEE, 2010)
    In order to support the conceptual development of Radio Access Technology (RAT) selection algorithms, the theory of Markov model has been used. Performance metrics can be derived from the steady state probabilities of a ...