Capacity of 60 GHz Wireless Communications Based on QAM
Author(s) -
Jingjing Wang,
Na Li,
Wei Shi,
Yangyang Ma,
Xiulong Liang,
Xinli Dong
Publication year - 2014
Publication title -
journal of applied mathematics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.307
H-Index - 43
eISSN - 1687-0042
pISSN - 1110-757X
DOI - 10.1155/2014/815617
Subject(s) - quadrature amplitude modulation , qam , phase shift keying , wireless , computer science , electronic engineering , additive white gaussian noise , telecommunications , computer network , channel (broadcasting) , bit error rate , engineering
With apparent advantages of the several GHz license-free spectrums, 10 W maximum transmit power, and so forth, 60 GHz wireless communication technology has become the first choice for Gbps level short-range wireless communications. This paper researches 60 GHz wireless communications over the additive white Gaussian noise channel. Channel capacity with quadrature amplitude modulation (QAM) is investigated for the unlicensed 59–64 GHz radio spectrum set aside by FCC. Moreover, the capacity with QAM is compared to that with phase shift keying (PSK). It is shown that QAM is capable of providing Gbps data rate and outperforms PSK especially when the modulation order is large. The results prove that QAM is an attractive scheme for 60 GHz wireless communications
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