Propagation of Mobile Communication with Tree Obstacle used OFDM-QAM at 10 GHz

2021

J.INFOTEL

Self Cite

The drone communication systems used a cellular network for controlling a drone from a long distance. That communication propagations between drone and base station were analyzed. The drone moved at the track around building environment. That environment used variations in building height. The communication propagation around building environment caused diffraction mechanism. Single knife edge method is used for that diffraction mechanism. The frequency of communication used 10 GHz. That frequency was influenced by atmospheric attenuation. This research was using some variations such as height of drone track location, transmitter power, and AMC (Adaptive Modulation Coding). MCS (Modulation Coding Scheme) was used AMC such as QPSK, 16 QAM, and 64 QAM. Some result was obtained at this research consist of LOS and NLOS distance, SNR, MCS probability, and percentage of drone coverage. NLOS propagation was caused by building height. The SNR value become increase when higher at drone position, such as drone was moving at 20 meters with height of flying drone 80 m and transmitter power 30 dBm obtained SNR 38.21 dBm. That SNR is affected AMC, so a higher SNR value increases AMC. The drone’s coverage 100%, with a height of flying drone 80 meters and transmitter power of 30 dBm. That condition showed more increasing coverage percentage than 64.8% for height of flying drone 20 meters and transmitter power 30 dBm. That result showed that more drone height increased of coverage percentage, probability modulation, and SNR value.

Section: Introductionmentioning

confidence: 99%

Cellular Communication Propagation at Drone around Building Environment with Single Knife Edge at 10 GHz

2021

J.INFOTEL

Self Cite

“…Millimeter-wave can be used in communication systems. Some research was related to millimeterwave such as determination location for mobile station around the building with AoA method at 47 GHz frequency [12], multipath effect around the building environment for mobile communication was used 47 GHz frequency [13], millimeter-wave for 5G communica tion at small area [14], millimeter-wave communication of 5G at wireless network [15], Propagation was depended with an angle for cellular and wireless communication [16], Propagation for mobile communication around tree used OFDM-QAM at 10 GHz [17], self-backhauling with flexib le reuse of the resources for access and backhaul in a street scenario with 5G network [18], the millimeterwave network for self-backhauling relay nodes and centralized transmission coordination [19], and performance of in-band self-backhauling with integrated access and backhaul in a real-life street canyon scenario for 5G systems [20]. adaptive modulation and coding (AMC).…”

Section: Introductionmentioning

confidence: 99%

The Communication System of Building from Outdoor to Indoor with AMC at 10 GHz

2020

INFOTEL

Self Cite

The propagation model of communication systems was used propagation from outdoor to indoor of building. In the inside that building used partition with brick. That propagation condition used downlink condition from mobile station side. The communication frequency used 10 GHz. Some parameter variation was used in this research such as radio base station coverage, mobile station location of building, and code rate communication. The coverage variation of radio base station used femtocell and picocell. As the result described signal to noise ratio (SNR)at every node communication, adaptive modulation and coding (AMC) variation, and coverage area percentage in the building. The modulation and coding scheme (MCS) was used consist of QPSK, 16 QAM, and 64 QAM

“…The communication systems through trees at 2.3 GHz [7]. Propagation of mobile communication with tree obstacles using OFDM-QAM at 10 GHz [8]. Median 60 GHz is wideband for indoor radio channel measurement [9].…”

Section: Introductionmentioning

confidence: 99%

Doppler Shift Effect at The Communication Systems with 10 GHz around Building

2020

J.INFOTEL

Self Cite

This research described the Doppler shift effect for the communication systems. The mobile station moves with various velocities around the building’s environment. Doppler’s shift influences the communication systems. The frequency communication was used 10 GHz and its influenced by atmospheric attenuation. This research consisted of propagation with LOS and NLOS conditions, mobile station velocity variation, height buildings variation, and transmitter power variation. This research described frequency maximum at Doppler shift, coherence time, and signal to noise ratio. More increase Doppler shift of coherence time caused signal noise ratio to decrease.