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System Level Simulation of LTE Networks

System Level Simulation of LTE Networks,10.1109/VETECS.2010.5494007,Josep Colom Ikuno,Martin Wrulich,Markus Rupp

System Level Simulation of LTE Networks   (Citations: 15)
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In order to evaluate the performance of new mobile network technologies, system level simulations are crucial. They aim at determining whether, and at which level predicted link level gains impact network performance. In this paper we present a MATLAB computationally efficient LTE system level simulator. The simulator is offered for free under an academic, noncommercial use license, a first to the authors' knowledge. The simulator is capable of evaluating the performance of the Downlink Shared Channel of LTE SISO and MIMO networks using Open Loop Spatial Multiplexing and Transmission Diversity transmit modes. The physical layer model is based on the postequalization SINR and provides the simulation pre-calculated "fading parameters" representing each of the individual interference terms. This structure allows the fading parameters to be pregenerated offline, vastly reducing computational complexity at run-time.
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    • ...The two simulators [34,35] described in Sections 2 and 3 of this article are freely available at our homepage...
    • ...The CQI reports are generated by an SINR-to-CQI mapping [35] and made available to the eNodeB implementation via a feedback channel with adjustable delay...
    • ...In a second step, gAWGN is mapped to BLER via AWGN link performance curves [34,35]...
    • ...The break-down into these two parts significantly reduces the computational effort since it avoids many complex multiplications required when directly working with MIMO channel matrices on system level [16,35,51]...

    Christian Mehlführeret al. The Vienna LTE simulators - Enabling reproducibility in wireless commu...

    • ...In [10], a system-level simulator for LTE networks has been proposed as a supplement of the previous one to support cell planning, scheduling, and interference...

    Giuseppe Piroet al. Simulating LTE Cellular Systems: an Open Source Framework

    • ...In order to simulate complete networks with many links between base stations and mobile terminals, Link Error Prediction (LEP) models that accurately abstract the PHY procedures at low complexity are required [4]...

    Josep Colom Ikunoet al. A Novel Link Error Prediction Model for OFDM Systems with HARQ

    • ...From [9], [10], the BLER for an RB with a given MCS can be accurately predicted from its effective SINR by...
    • ...where m and γ are denoted as the MCS index and the effective SINR, respectively, erfc(·) is the complementary error function, bm and cm are the corresponding fitting parameters for a given MCS with an index of m which can be obtained from [9], [10]...
    • ...For example, if the MCS index is 7, then we have b7 =2 .7523 and c7 =0 .1487 from [9], [10] and...

    Jiancun Fanet al. Adaptive Block-Level Resource Allocation in OFDMA Networks

    • ...We have preferred the Matlab because it is adequate for the simulation of different signal processing methods used in wireless networks [5]...

    Jamal Mountassiret al. A physical layer simulator for WiMAX in Rayleigh fading channel

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