International Journal of Wireless Communications and Mobile Computing

Volume 2, Issue 1, January 2014

  • Penetration Loss of Walls and Data Rate of IEEE802.16m WiMAX

    Hala BahyEldeen Nafea, Fayez W. Zaki, Hossam E. S. Moustafa

    Issue: Volume 2, Issue 1, January 2014
    Pages: 1-10
    Received: Nov. 05, 2013
    Accepted:
    Published: Dec. 20, 2013
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    Abstract: In this paper, the data rate for the downlink (DL) of OFDMA-based IEEE802.16m WiMAX system and the available DL throughput as a function of distance to the Base Station (BS) are estimated for a number of propagation scenarios (OUTDOOR; INDOOR 1, INDOOR 2 and INDOOR 3). Moreover, Walls penetration loss is also considered. Adaptive modulation and Cod... Show More
  • Performance Assessment of a Downlink Two-Layer Spreading Encoded COMP MIMO OFDM System

    Md. Mainul Islam Mamun, Joarder Jafor Sadique, Shaikh Enayet Ullah

    Issue: Volume 2, Issue 1, January 2014
    Pages: 11-17
    Received: Jan. 05, 2014
    Accepted:
    Published: Feb. 20, 2014
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    Abstract: In this paper, a comprehensive BER performance simulative study has been made on data transmission in a downlink coordinated multipoint wireless communication System. The COMP MIMO OFDM system under investigation implements Turbo and LDPC channel coding, Spatially multiplexing and Space-time block coding (STBC), Doubly Spreading Minimum Mean Square... Show More
  • RSS-based Near-Collinear Anchor aided Positioning Algorithm for Ill-conditioned Scenario

    Senka Hadzic, Du Yang, Manuel Violas, Jonathan Rodriguez

    Issue: Volume 2, Issue 1, January 2014
    Pages: 18-22
    Received: Jan. 15, 2014
    Accepted:
    Published: Feb. 20, 2014
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    Abstract: The conventional Received Signal Strength (RSS) based positioning algorithms such as Least Square (LS) and Weighted LS (WLS) produce significant estimation errors when the anchor nodes positions approach a collinear scenario. In this paper, we propose the CAP (Collinear Anchor aided Positioning) algorithm to provide robust positioning performance u... Show More