tailieunhanh - Implementation of FHMA communication system using labview

This research was conducted FHMA (Frequency Hopping Multiple Access) standard using Labview. FHMA was developed in Israel in the spectral efficiency. The main objective of this research is to emphasize the performance of the communication system of FHMA paper. FHMA have good radio features that provide full radio capacity, covering the trunking and untargeted mobile phone, with a choice of services including packet mode, short message services and voice. FHMA is compatible with a wide range of additional services, and can be used as for government, emergency services, transportation and military applications. | International Journal of Computer Networks and Communications Security C VOL. 2, NO. 4, APRIL 2014, 129–136 Available online at: ISSN 2308-9830 N C S Implementation of FHMA Communication System using LabView Engr. Abdul Rehman1, Engr. Zeeshan Yousuf2, Engr. Abdul Aziz3, Engr. Fasih-ur-Rehman4, Engr. Usman Ali Khan5 1, 2, 3, 4, 5 Department of Electronic Engineering, the Islamia University of Bahawalpur, Pakistan-63100 E-mail: , , , 4 , ABSTRACT This research was conducted FHMA (Frequency Hopping Multiple Access) standard using Labview. FHMA was developed in Israel in the spectral efficiency. The main objective of this research is to emphasize the performance of the communication system of FHMA paper. FHMA have good radio features that provide full radio capacity, covering the trunking and untargeted mobile phone, with a choice of services including packet mode, short message services and voice. FHMA is compatible with a wide range of additional services, and can be used as for government, emergency services, transportation and military applications. Keywords: BER, Labview, SQPSK, TDMA. 1 INTRODUCTION FHMA is a digital multiple access communication system where the frequencies of the carrier are different from the broadband subscribers in a pseudo-random channel. FHMA allow different users to use concurrently the similar range at the same time, where every user use a particular narrow band channel time demanding. For example depends on the required user PN code. Digital data from each user is divided into bursts in the same size, which are sent in different channels with in the define range. The burst of any transmission is smaller than the size of the increase in bandwidth. Pseudo-random frequencies to randomly change the user choose to use a particular channel every time, allow multiple access via a large range of frequencies. .

• Hệ điều hành
• International Journal of Computer Networks and Communications Security
• Implementation of FHMA communication system using labview
• FHMA communication system using labview
• Frequency Hopping Multiple Access
• Services including packet mode