By Topic

13th International Conference on Advanced Communication Technology (ICACT2011)

13-16 Feb. 2011

Filter Results

Displaying Results 1 - 25 of 376
  • [Front cover]

    Publication Year: 2011, Page(s): c1
    IEEE is not the copyright holder of this material | PDF file iconPDF (830 KB)
    Freely Available from IEEE
  • [Title page]

    Publication Year: 2011, Page(s): 1
    IEEE is not the copyright holder of this material | PDF file iconPDF (150 KB)
    Freely Available from IEEE
  • [Copyright notice]

    Publication Year: 2011, Page(s): 1
    IEEE is not the copyright holder of this material | PDF file iconPDF (19 KB)
    Freely Available from IEEE
  • Message

    Publication Year: 2011, Page(s):i - ii
    Request permission for commercial reuse | PDF file iconPDF (250 KB) | HTML iconHTML
    Freely Available from IEEE
  • Objectives

    Publication Year: 2011, Page(s):iii - iv
    Request permission for commercial reuse | PDF file iconPDF (67 KB)
    Freely Available from IEEE
  • Board of reviewer

    Publication Year: 2011, Page(s):v - ix
    IEEE is not the copyright holder of this material | PDF file iconPDF (61 KB)
    Freely Available from IEEE
  • Session overview

    Publication Year: 2011, Page(s):x - xi
    IEEE is not the copyright holder of this material | PDF file iconPDF (64 KB)
    Freely Available from IEEE
  • Table of contents

    Publication Year: 2011, Page(s):i - xxxii
    IEEE is not the copyright holder of this material | PDF file iconPDF (220 KB)
    Freely Available from IEEE
  • Technical session: Session 01A: Wireless communication technology I

    Publication Year: 2011, Page(s): 1
    Request permission for commercial reuse | PDF file iconPDF (60 KB)
    Freely Available from IEEE
  • Dependency of jitter variance on PLL normalized noise bandwidth

    Publication Year: 2011, Page(s):2 - 7
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (498 KB) | HTML iconHTML

    The present paper describes the dependency of jitter variance on the PLL normalized noise bandwidth, bL, applying a linearized model of a PLL. The timing circuit consists of a square-law device, a pre-filter, and a PLL arranged in tandem. The transmission systems are PAM, ASK, and QAM for a root roll-off bandlimiting scheme. An additive white Gaussian noise exists at the receive filter ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Antenna directivity effect on the delay spread at millimeter-wave

    Publication Year: 2011, Page(s):8 - 12
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (474 KB) | HTML iconHTML

    Millimeter-wave band has been using for high-speed line of sight transmission in short range and there is no problem due to delay spread. But if it is used in indoor to connect an access point(AP) to terminals of WLAN, the delay spread made by multipath reflections limits the transmission speed. Typically, antenna beamwidth is the wider, delay spread is the bigger and it is also equally applicable... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Applications of Internet of Things on smart grid in China

    Publication Year: 2011, Page(s):13 - 17
    Cited by:  Papers (6)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (214 KB) | HTML iconHTML

    Smart grid can apply Internet of Things (IoT) technologies for creating various intelligent services. In this paper, the basic requirements of the smart grid in China are reviewed. The development of most aspects of the smart grid would be enhanced by the applying the technologies of IoT. The architecture of IoT for the smart grid in China is introduced, which can be expressed as three layers: the... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Performance evaluation of the reliable cooperative MAC protocol in ad hoc networks

    Publication Year: 2011, Page(s):18 - 23
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (244 KB) | HTML iconHTML

    A new reliable cooperative MAC protocol called RCO-MAC is proposed, and the protocol's performance is evaluated with numerical analysis and computer simulation. The key concept for this RCO-MAC protocol is to give the responsibility of the error recovery by retransmission for a frame to the node that transmits the frame. The system throughput is used as a performance metric. According to numerical... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A Road and Traffic-aware Routing Protocol in Vehicular Ad hoc Networks

    Publication Year: 2011, Page(s):24 - 28
    Cited by:  Papers (3)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (485 KB) | HTML iconHTML

    The Vehicular Ad hoc Network (VANET), a subset of Mobile Ad hoc Network, is used in many applications such as assisting driver with signage, road traffic reporting, telling the way, etc. Since VANET has highly dynamic topology and various vehicle densities, developing a routing protocol that can satisfy above applications requirements is a great challenge. In this paper, we present an efficient Ro... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Technical session: Session 01B: Mobile communications I

    Publication Year: 2011, Page(s): 29
    IEEE is not the copyright holder of this material | PDF file iconPDF (61 KB)
    Freely Available from IEEE
  • Design of a rectangular spiral antenna for Wi-Fi application

    Publication Year: 2011, Page(s):30 - 34
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (518 KB) | HTML iconHTML

    This paper highlights the design, simulation, analysis and fabrication of a coaxial-fed rectangular spiral microstrip antenna (RSMA) for Wi-Fi application. The centre frequency is 2.45 GHz and the bandwidth is 22 MHz. The radiation pattern of this RSMA illustrated an omni-directional pattern with voltage standing wave ratio of less than two (2), return loss of less than -10 dB, the line impedance ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Effective contention-based bandwidth request scheme for QoS enhancement in IEEE 802.16e

    Publication Year: 2011, Page(s):35 - 38
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (164 KB) | HTML iconHTML

    In this paper, we propose an effective contention-based bandwidth request scheme to differentiate the contention scheme of each quality of service(QoS) type in IEEE 802.16e systems. Especially, the scheme is focused on the improvement for extended real-time polling service(ert-PS). The proposed scheme allows the ert-PS to use multicast polling in the normal condition, but to adopt both multicast a... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Service class-aided scheduling for LTE

    Publication Year: 2011, Page(s):39 - 43
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (269 KB) | HTML iconHTML

    LTE (Long Term Evolution) supports QoS (Quality of Service) with several service classes. For each class of traffic, a big difference exists on BER (Bit Error Rate) requirement. This leads to a considerable difference in transmission power for various classes of traffic. In this paper, a novel scheduler is designed and proposed for LTE which supports CoS (Class of Service) with the consideration o... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Impacts of CEE and CBS on the capacity of MIMO-OFDM systems

    Publication Year: 2011, Page(s):44 - 49
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (167 KB) | HTML iconHTML

    In most of previous studies, the capacity of MIMO-OFDM systems was investigated by supposing that the perfect channel state information (CSI) is available and the correlation between subcarriers (CBS) is ignorable. In practical applications, the CSI is obtained by channel estimation, where the channel estimate error (CEE) exists unavoidably. On the other hand, it is proven that different MIMO subc... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Two-Step Paging for reducing signaling costs in Mobile IP

    Publication Year: 2011, Page(s):50 - 55
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (219 KB) | HTML iconHTML

    Recently, Mobile IP has been widely used to support seamless Internet user mobility. However, unnecessary registration process of Mobile IP system for tracking mobile users' movement causes large increase of signaling costs, and affects the scalability. Therefore, it is necessary to investigate how to reduce the signaling costs in Mobile IP. This paper proposes a Two-Step Paging Scheme for Mobile ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Technical session: Session 01C: RFID/USN technologies I

    Publication Year: 2011, Page(s): 56
    IEEE is not the copyright holder of this material | PDF file iconPDF (60 KB)
    Freely Available from IEEE
  • A CMOS power amplifier for UHF RFID reader systems

    Publication Year: 2011, Page(s):57 - 60
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (153 KB) | HTML iconHTML

    This paper presents a CMOS single-ended power amplifier for UHF RFID reader system-on-chip. Since the power amplifier for RFID reader demands high power gain and linearity, the designed power amplifier adopts two-stage structure which has a class-A operation. The power amplifier is designed and fabricated using commercial 0.13 μm CMOS process. Its chip size is 500×420 μm2... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Needle in a cross-layer sensor stack

    Publication Year: 2011, Page(s):61 - 66
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (244 KB) | HTML iconHTML

    In this problem, the process start with real-valued inputs and are supposed to decide eventually on real-valued outputs. The process is permitted to send real-valued data in messages. Instead of having to agree exactly, as in the ordinary agreement problem, this time the requirement is just that they agree with within a small positive real-valued tolerance ε. In the standard implementation ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A joining mechanism for efficient address management in low-rate WPAN mesh

    Publication Year: 2011, Page(s):67 - 70
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (343 KB) | HTML iconHTML

    The IEEE 802.15.5 standard is operated in mesh topology. In order to simply forward via mesh sublayer, this network assigns address of devices using block address scheme. However, this scheme has a weak point that is lack of address. To overcome this weakness, we suggest a new mechanism of joining process that makes a tree level minimized. After the network is completed, each node checks periodica... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • rXPDL: An XML-based policy definition language for policy-driven RFID event management agents

    Publication Year: 2011, Page(s):71 - 75
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (298 KB) | HTML iconHTML

    In this paper, we focus on RFID middleware's event management functionality that provides a means of specifying event-constraints for filtering a huge number of raw data cought from the associated RF readers. However, the current specifications are too circumstantial to be understood by the application developers who used to lack the professional and technological backgrounds of the RFID middlewar... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.