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• W3012247283 abstract "A few years ago the communications industry announced a plan for the introduction of fifth-generation(5G) wireless network. Unlike the previous successive generations which are a slightiteration of their predecessor technologies, 5G is going to be a major leap in the communicationindustry by introducing several new applications, which have never been covered by anytelecommunication standards. Example of such applications are the Ultra-reliable low-latencycommunications, vehicle-to-everything and the internet of things. And in order to meet thesenew challenges, researchers world over are seeking new methods and techniques that will makethe 5G revolution a reality.Index modulation for multicarrier systems which is the focus of this thesis is one of the newphysical layer technologies that hold the promise of improving data rates without increasingthe system bandwidth, as well as improves energy efficiency. Orthogonal frequency divisionmultiplexing with index modulation, for example, conveys information by selecting and activatinga subset of OFDM subcarriers for M-ary symbol transmission. In addition to the M-arysymbols, information is encoded into the indices of the active carriers to improve spectral efficiency.The energy saved from the inactive subcarriers can be redistributed through the powerredistribution policy (PRP) among the active subcarriers to improve SNR or can be saved, byimplementing the power saving policy (PSP), therefore improving energy efficiency.In order to provide a valuable reference and guideline for the design of OFDM-IM systems,this thesis has analyzed the error performance of both single active and multi-active subcarriersper cluster systems and as a result, provides a generalized bit error rate (BER) expressionfor OFDM-IM in the AWGN channels. Using (n=2, k=1, M-ary) OFDM-IM configuration,a closed-form BER expression of OFDM-IM in a Rayleigh fading channel has also been derived.Analytical results show that the BER of an OFDM-IM system is a weighted sum ofexponentials and Q-functions which conforms well with the numerical results up to a BER of10" @default.
• W3012247283 created "2020-03-23" @default.
• W3012247283 creator A5054620616 @default.
• W3012247283 date "2020-02-28" @default.
• W3012247283 modified "2023-09-27" @default.
• W3012247283 title "Index modulation based multicarrier systemsfor future wireless networks" @default.
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• W3012247283 doi "https://doi.org/10.15126/thesis.00853745" @default.
• W3012247283 hasPublicationYear "2020" @default.
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