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In this paper, fully controlled interference cancellation module (ICM) for an 18 GHz 2 × 2 line-of-sight (LoS) multiple input, multiple output (MIMO) system is presented. A 2 × 2 LoS MIMO hardware prototype with a 110 MHz channel bandwidth and data rate of 250 Mbps per path (total of 500 Mbps) was fabricated in the 18 GHz band. In the 16-QAM digital modulation test, the experimental results show that...
In this paper, an 18 GHz 2 × 2 line-of-sight (LoS) multiple input, multiple output (MIMO) system for fixed wireless access is presented. The amplitude variation by the antenna beam pattern are calculated in a LoS environment for 2 × 2 MIMO system development. In addition, the theoretical SIR from these variations is extracted and verified through H/W test.
By using radio propagation predictions of Rec. ITU-R P.1546 combined with geographic information, formulations for field calculation and interference analysis are presented in the VHF and UHF bands. To illustrate some computational results for given system parameters, virtual geographic information data are taken into account.
Network enabled digital technology increases the connectivity of consumer devices within the home for the purpose of remote control and monitoring of network enabled devices. Such dynamic control scheme for multiple legacy IR controllable digital consumer electronics appliances increases power consumption and system complexity. In this paper, we present a wireless sensor node SoC with a profiled power...
In this paper, wireless PtP system in E-band (70/80 GHz) for gigabit ethernet link was designed and fabricated. To two-way communication of FDD(frequency division diplexing), two types of transmitter/receiver were made. The conversion gains of transmitter were 7-12 dB and 15-25 dB respectively and P1dBs were both max 16 dBm. The conversion gains of receiver were -6-0 dB and 10-20 dB respectively....
This paper presents a symbol synchronization algorithm in the multi-mode orthogonal frequency division multiplexing (OFDM) systems. Efficient system reconfiguration algorithm applying to the adaptive modulation and coding (AMC) method is also presented. The algorithm for the symbol synchronization uses the shorter repetition period for computing correlation values than existing methods. It can reduce...
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