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International Journal of Electronics and Telecommunications

Tytuł artykułu

Comparative Analysis of Channel Estimation Techniques in SISO, MISO and MIMO Systems

Autorzy Obinna, O.  Kennedy, O.  Osemwegie, O.  Nsikan, N. 
Treść / Zawartość
Warianty tytułu
Języki publikacji EN
EN The ever-growing need for high data rate, bandwidth efficiency, reliability, less complexity and less power consumption in our communication systems is on the increase. Modern techniques have to be developed and put in place to meet these requirements. Research has shown, that compared to conventional Single Input Single Output (SISO) systems, Multiple-Input Single Output (MISO), and Multiple-Input Multiple-Output (MIMO) can actually increase the data rate of a communication system, without actually requiring more transmit power or bandwidth. This paper aims at the investigation of the existing channel estimation techniques. Based on the pilot arrangement, the block type and comb type are compared, employing the Least Square estimation (L.S) and Minimum Mean Squared Error (MMSE) estimators. Pilots occupy bandwidth, minimizing the number of pilots used to estimate the channel, in order to allow for more bandwidth utilization for data transmission, without compromising the accuracy of the estimates is taken into consideration. Various channel interpolation techniques and pilot-data insertion ratio are investigated, simulated and compared, to determine the best performance technique with less complexity and minimum power consumption. As performance measures, the Mean Squared Error (MSE) and Bit Error Rate (BER) as a function of Signal to Noise power Ratio (SNR) of the different channel estimation techniques are plotted, in order to identify the technique with the most optimal performance. The complexity and energy efficiency of the techniques are also investigated. The system modelling and simulations are carried out using Matlab simulation package. The MIMO gives the optimum performance, followed by the MISO and SISO. This is as a result of the diversity and multiplexing gain experienced in the multiple antenna techniques using the STBC.
Słowa kluczowe
EN multiple-input multiple-output (MIMO)   multiple-input single output (MISO)   single input single output (SISO)   least square estimation (L.S)   minimum mean squared error (MMSE) estimators   mean squared error (MSE)   bit error rate (BER)  
Wydawca Polish Academy of Sciences, Committee of Electronics and Telecommunication
Czasopismo International Journal of Electronics and Telecommunications
Rocznik 2017
Tom Vol. 63, No. 3
Strony 299--304
Opis fizyczny Bibliogr. 13 poz., tab., wykr.
autor Obinna, O.
autor Kennedy, O.
  • Department of Electrical and Information Engineering, Covenant University, Ota, Nigeria
autor Osemwegie, O.
  • Department of Electrical and Information Engineering, Covenant University, Ota, Nigeria
autor Nsikan, N.
  • Department of Electrical and Information Engineering, Covenant University, Ota, Nigeria
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PL Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).
Kolekcja BazTech
Identyfikator YADDA bwmeta1.element.baztech-2ff410c2-aec2-4255-a824-ad7993f014dc
DOI 10.1515/eletel-2017-0040