Determination of MS Location through Building Using AoA Method of Frequency 47 GHz

This research discusses the determination of mobile station (MS) location of the uplink communication system. The location determination mobile station is based on the angle-of-arrival (AoA) method. The communication propagation is influenced by building environment. The building environment was modeled with diffraction method. Several diffraction methods were used such as single knife edge, and multiple knife edge method. The communication frequency used was 47 GHz. The analysis used percentage value at coverage area and comparison of error percent values between two method to determine mobile station location. The percentage of the communication coverage area obtained was 71.4% or of 255 from 300 nodes. The comparison methods used for mobile station location determination were the selection of the best SNR and localization technique. The error percentage value based on the selection of the best SNR method is 0.95%. The error percentage value based on localization technique method is 0.78%.

Download Full-text

MODELING OF KOARMADA MARINE OPERATIONS II BASED ON THE THREAT PREDICTION FROM INTELLIGENCE WITH A MULTI CRITERIA DECISION MAKING APPROACH

JOURNAL ASRO ◽

10.37875/asro.v12i01.389 ◽

2021 ◽

Vol 12 (01) ◽

pp. 128

Author(s):

Fa'iq Mumtaz Muhammad ◽

Budisantoso Wirjodirdjo ◽

Okol Sri Suharyo ◽

Yudha Sukma Perdana

Keyword(s):

Decision Makers ◽

Military Operations ◽

Coverage Area ◽

Fuel Savings ◽

National Jurisdiction ◽

The Republic ◽

Security Operations ◽

Operations Other Than War ◽

Selection Of

Indonesia as archipelagic country, needs strong maritime sector security. The Indonesian Navy in Law Number 34 Year 2004 has been given the mandate to safeguard the sovereignty of the Republic of Indonesia. The Armada II Command as Kotamaops annually carries out Military Operations Other Than War (OMSP) which is carried out under the command of Guspurla and Guskamla. Intelligence information regarding the estimated threat / contingency that will occur is very influential on decision makers in operational planning. With the contingency provided by the intelligence staff, it is necessary to have an appropriate marine operation modeling. In a multi-operation operation, it is necessary to have a supporting attribute, that is, a base ship. The purpose of this study is to formulate an operation modeling using the selection of a headquarter ship which is preceded by the determination of contingency priorities. This study uses MCDM which consists of MCDA and MCDO which uses the integration of the Delphi method, AHP, Fuzzy weighting, Goal programming and linear Integer-Zero one programming. Based on the processing of Delphi and AHP, in determining the threat of OMSP, it is influenced by the number / intensity of incidents of 20.4%; impact of Ipoleksosbudhankam 29.4%, Capabiity 38.2% and involvement factor of 12.1% where national jurisdiction marine security operations are selected as the first priority. Meanwhile, in the selection of the headquarters ship which functions to coordinate the KRI in carrying out sector patrols, using the FWH and IGP, the KRI was chosen as the Sigma class to be the headquarters ship. This modeling uses 22 of the 24 KRI that have been allocated by obtaining an increase in the optimization of the coverage area and fuel savings.. Keywords: OMSP, MCDM, Contigency, headquarters warship and Maritime Security Operations

Download Full-text

Adaptive Modulation and Coding (AMC) around Building Environment for MS Communication at The Train

EMITTER International Journal of Engineering Technology ◽

10.24003/emitter.v6i2.279 ◽

2018 ◽

Vol 6 (2) ◽

pp. 386-394

Author(s):

Andrita Ceriana Eska

Keyword(s):

Communication Systems ◽

Adaptive Modulation ◽

Mobile Station ◽

Adaptive Modulation And Coding ◽

Frequency Variation ◽

Coverage Area ◽

Communication Frequency ◽

Building Environment ◽

5 Ghz ◽

Area Percentage

This paper focused at communication systems when train moved. The communication propagation was influenced by building environment. The communication condition that used uplink direction. Mobile station was placed inside the train where moved with 500 km/hour velocity. The analysis was used consists of Doppler effect, atmospheric, and building environment. The variation communication frequency was used consists of 2.6 GHz, 5 GHz, and 10 GHz. Diffraction mechanism caused building was used single knife edge method. The result was showed SNR value from the communication frequency variation, distance comparison between LOS and NLOS, alteration adaptive modulation and coding (AMC), and coverage area percentage. Modulation and Coding Scheme (MCS) was used for AMC consists of QPSK, 16 QAM, and 64 QAM. Decreases of SNR value can be occured when communication distance for NLOS condition farther then LOS condition. That distance became increases because was obstructed with high building. Changeable of AMC value was caused propagation condition. The coverage area percentage when communication frequency that was used consists of 2.6 GHz, 5 GHz, and 10 GHz was obtained 88.4%, 88.4%, and 81.7%.

Download Full-text

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

JURNAL INFOTEL ◽

10.20895/infotel.v12i1.465 ◽

2020 ◽

Vol 12 (1) ◽

Author(s):

Andrita Ceriana Eska

Keyword(s):

Communication Systems ◽

Signal To Noise Ratio ◽

Adaptive Modulation ◽

Mobile Station ◽

Base Station ◽

Propagation Model ◽

Adaptive Modulation And Coding ◽

Coverage Area ◽

Communication Frequency ◽

Station Location

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

Download Full-text

Experimental Research on Transient Electromagnetic Multi-Turn Minor Loop Device

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.448-453.3780 ◽

2013 ◽

Vol 448-453 ◽

pp. 3780-3787

Author(s):

Kai Zhang ◽

Jun Gao ◽

Xiao Xia Hao

Keyword(s):

Physical Simulation ◽

Side Length ◽

Observation System ◽

Minor Loop ◽

Location Determination ◽

Transient Electromagnetic ◽

Resolution Capability ◽

Wire Frame ◽

Selection Of

There is the polar distance selection of dipole device, the location determination of recording points, the resolution capability of multiple anomalies and other problems existing in the practical application of transient electromagnetic method in multi-turn minor loop device. Through physical simulation experiments, this paper gives experimental comparisons of polar distance, recording points, and the resolution capability of two anomalies in a certain interval between dipole device and overlapping device. The experimental results show that: the dipole device has the better resolution capability of small polar distance, 1.25 times wire-frame side length is appropriate for general selection of polar distance, and the maximum distance should not exceed 1.5 times wire-frame side length, the recording point is located in the midpoint position of transmitting and receiving coils; while the overlapping device has the obviously higher resolution of double anomalies in a certain interval than dipole device, and the minimum resolution is about 1.5 times wire-frame side length. These characteristics provide the realistic basis for reasonable selections and optimization designs of multi-turn minor loop observation system.

Download Full-text

Systematic procedure for the determination of the nature of the solutes prior to the selection of the mobile phase parameters for optimization of reversed-phase ion-pair chromatographic separations

Journal of Chromatography A ◽

10.1016/s0021-9673(01)84371-5 ◽

1989 ◽

Vol 478 (1) ◽

pp. 21-38 ◽

Cited By ~ 1

Author(s):

G Low

Keyword(s):

Mobile Phase ◽

Reversed Phase ◽

Ion Pair ◽

Chromatographic Separations ◽

Systematic Procedure ◽

Selection Of

Download Full-text

DETERMINING THE DESALINATION UNIT COMPOSITION FOR COSTAL AREAS AND SMALL ISLANDS USE ANALYTIC HIERARCHY PROCESS

Jurnal Rekayasa Lingkungan ◽

10.29122/jrl.v9i1.1986 ◽

2017 ◽

Vol 9 (1) ◽

Author(s):

Imam Setiadi ◽

Dinda Rita K. Hartaja

Keyword(s):

Analytic Hierarchy Process ◽

Energy Demand ◽

Pairwise Comparison ◽

Small Islands ◽

Ahp Method ◽

Analytic Hierarchy ◽

Comparison Research ◽

Hierarchy Process ◽

Selection Of

Selection of the appropriate composition desalination units can be done with a variety of method approaches, one of the method is the Analytic Hierarchy Process. In determining the desalination unit with AHP method to consider is setting a goal, an alternative criteria and pairwise comparison. Research for the determination of the exact composition of the desalination unit in order to achieve sustainable drinking water suppy in coastal areas and small islands has been conducted. The results of the study are as follows, the energy demand of 50.83%, operator costs of 26.64%, maintenance costs of 14.13% and chemical requirement 8.4%. For an alternative composition desalination unit of RO 10 m3 / day is the best alternative composition with value of 59.61%, the composition of the next alternative is RO 20 m3/ day of 30.40% and the last alternative of the desalination unit composition is RO 120 m3/ day of 09.99%.Key words : Desalination, Mukti Stage Flash Composition, AHP

Download Full-text