Throughput Maximization by Adaptive Switching with Modulation Coding Scheme and Frequency Symbol Spreading

It is required to realize higher transmission rate and higher reliability for mobile communication due to the increase in Internet use. However, wireless channel capacity can not be used with maximum efficiency due to fluctuating channels affected by shadowing, multipath fading and mobility.Adaptive...

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Vydáno v:	Journal of Communications Software and Systems Ročník 14; číslo 4; s. 332 - 339
Hlavní autoři:	Kojima, Shun, Maruta, Kazuki, Ahn, Chang-Jun
Médium:	Journal Article Paper
Jazyk:	angličtina
Vydáno:	Udruga za komunikacijske i informacijske tehnologije, Fakultet elektrotehnike, strojarstva i brodogradnje, Sveučilište u Splitu 01.12.2018 Croatian Communications and Information Society (CCIS)
Témata:	adaptive modulation and coding FSS-OFDM
ISSN:	1845-6421, 1846-6079
On-line přístup:	Získat plný text
Tagy:	Přidat tag Žádné tagy, Buďte první, kdo vytvoří štítek k tomuto záznamu!

Popis
Shrnutí:	It is required to realize higher transmission rate and higher reliability for mobile communication due to the increase in Internet use. However, wireless channel capacity can not be used with maximum efficiency due to fluctuating channels affected by shadowing, multipath fading and mobility.Adaptive modulation and coding (AMC) scheme is now commonly implemented to maximize the throughput performance under the given link qualities. Forward Error Correction (FEC) based link adaptation is effective to improve throughput in a lower SNR regime, however, it immolates maximal throughput in good channel condition. Frequency symbol spreading (FSS) has been proposed that can improve BER even without FEC. It fully exploits the frequency diversity gain by spreading symbol per subcarrier to all frequency components. This paper proposes a new adaptation control scheme for OFDM by switching FSS and legacy AMC. Simulation result verifies its maximized throughput performance harvesting both of frequency diversity gain and coding gain.
Bibliografie:	209195
ISSN:	1845-6421 1846-6079
DOI:	10.24138/jcomss.v14i4.616