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This paper presents a novel application of software radio (e.g., Sora) for hand gesture recognition by using long training symbols. The type of gesture performed between the transmitter and receiver can have significant effects on the received wireless signals (e.g., IEEE 802.11a). Since all wireless signal processing functions could be done completely in software, we can easily capture the two long...
The proliferation of mobile devices of late has been exponential in numbers as well as heterogeneity, which gives rise to a great increase in the demand of spectral resources. Researchers have suggested that in order to solve the spectrum crisis, future spectrum users will be required to be frequency-flexible and cognitive, and spectrum sharing protocols on communication system have thus been studied...
Global carbon trading market is growing stronger and will eventually surpass petroleum market to be the largest market in the world. As a major country of resource consumption, China has huge carbon trading market potential. Due to numerous uncertainties in Post-CDM Era, it's urgent for China to establish its own carbon trading system and participate in global carbon trading market. According to the...
We proposed and analyzed an amplified self-coherent detection scheme by extracting and amplifying the optical carrier in an optical OFDM receiver. Simulation results exhibit about 6-dB OSNR sensitivity improvement over traditional direct-detected OFDM receiver.
A collection of new length four 16-QAM Golay complementary pairs are presented. Most of the new pairs have pairing sequences with unequal sequence power. These pairs are variations of 13 basic pairs, including ([A A A A], [A B -B -A]), where A is any complex number and B= (1+2j)A. Note that the constant sequence [A A A A] was considered not to be a Golay sequence when PSK alphabets are employed. There...
The advanced MIMO (multiple-input multiple-output) system can provide higher capacity gain or higher diversity gain in modern wireless networks. The capacity gain is achieved by interference cancellation technique to fully utilize the spatial degree of freedom. In a multiuser wireless system, the increased degrees of freedom provide the chance to select multiple wireless stations (STAs) to maximize...
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