Frequency Hopping Spread Spectrum (FHSS) Utilization for Transmission and Reception of Data
Scope of the Project: Modern communication systems use Frequency Hopping Spread Spectrum (FHSS) to make wireless communication secure and immune to jamming. This is achieved by generating a pseudorandom sequence according to which frequencies are hopped. This project provides
2025-06-28 16:27:25 - Adil Khan
Frequency Hopping Spread Spectrum (FHSS) Utilization for Transmission and Reception of Data
Project Area of Specialization Information & Communication TechnologyProject SummaryScope of the Project:
Modern communication systems use Frequency Hopping Spread Spectrum (FHSS) to make wireless communication secure and immune to jamming. This is achieved by generating a pseudorandom sequence according to which frequencies are hopped. This project provides LabView and MatLab based implementation of an efficient scheme to transmit, receive and demodulate data by employing FHSS modulation and demodulation techniques.
Softwares:
Two softwares would be used to implement this project named as:
• LabView
• MATLAB
1. LabView
National Instruments’ Laboratory Virtual Instrument EngineeringWorkbench (LabView) is a system design platform and development environment for their visual programming language. ”G” is the name of the graphical language used by LabView. LabView is the one to create the G data flow language. On a number of operating systems (OSs), including Microsoft Windows, as well as different versions of Unix, Linux, and macOS, LabVIEW is widely used for data collecting, instrument control, and industrial automation. LabView will be used to develop a working FHSS transmission and reception model. The developed model will then be implemented on hardware using USRPs. Thus LabView is concerned with the hardware implementation phase of the project.
2. MATLAB
MATLAB (short for ”MATrix LABoratory”) is a MathWorks proprietary programming language and numeric computation environment. Matrix operations, function and data visualisation, algorithm implementation, user interfacenbuilding, and interfacing with programs written in other languages are all possible with MATLAB.
Proposal Statement:
Data transmission and reception using FHSS is to be done, received data is to be demodulated. Synchronization is to be achieved between the transmitter and receiver by using a pseudorandom sequence generator.
Project Implementation MethodHardware Implementation:
Using NI LabView, FHSS transmitter and receiver will be designed, which would further be interfaced with Universal Software Radio Peripheral (USRP) to transmit the signal over air, and then receive the wirelessly transmitted signal. The phase would further be divided into three sub phases listed below.
• Design and Development of LabView Model
• Connection with USRP
• Transmission and Wireless Reception of FHSS Signal
Demodulation and Synchronization:
This phase would take the previously received signal and demodulate the signal to extract the originally transmitted signal, which would further be demodulated utilizing the same PN Sequence to extract the data signal. Furthermore, Bit Error Rate (BER) will be calculated for the designed communication system. The phase would further be divided into three sub
phases listed below.
• Demodulation of Received Signal
• Receiver Synchronization and Data Extraction
• BER Calculation
Successful completion of this project will add anti-jamming capabilities in
radios used for security applications. This is a useful and much-needed feature in any
security application communication system and will assist in smooth voice and
data transmission in hostile environment without the fear of jamming or
eavesdropping on sensitive information. Security operations will be safer
and faster as far as the voice/data communication is concerned. If security agencies
can acquire such frequency hopping communication systems indigenously
through innovative projects, millions of rupees of cost that will otherwise
be incurred on purchasing such systems form other nations can be saved.
This project can prove to be even more useful if this concept is extended
to all secure communications in wireless media. Some other main advantages
of the project are listed below.
Information Security
By using FHSS communication systems for wireless transmissions, various
types of data like voice, text and encrypted messages and flexible data
rates can be supported. This software system will also definitely prove to
be superior in terms of weight and size, factors which are very significant in mobile systems.
Reprogrammability and Compatibility
Due to its software aspect, the communication system will be programmable,
re-configurable and adaptable for future needs and upgrades. It will also
be compatible with a number of existing communication systems and can
also be enhanced and upgraded in future. The reconfigurable ability can
be used for changing the frequency band, channel bandwidth, modulation
and coding scheme and for mobility management.
The final deliverables of the project are as follows
• Design of FHSS signal generation system
• M-ary PSK / QAM modulated FHSS signal generation simulation in
MATLAB Simulink / LabView
• Hardware implementation for modulated FHSS signal generation and
over the air transmission
• Wireless reception of FHSS signal and conversion to IF for subsequent
digitization utilizing the PN sequence used for spreading at the
transmitter side
• Demodulation of digitally modulated signal vis a vis parameters used
for modulation
• Data extraction and BER calculation
| Item Name | Type | No. of Units | Per Unit Cost (in Rs) | Total (in Rs) |
|---|---|---|---|---|
| Total in (Rs) | 80000 | |||
| Reception / Transmission Screens | Equipment | 2 | 30000 | 60000 |
| USRP | Equipment | 4 | 2500 | 10000 |
| 3D printing of Antenna mounts | Miscellaneous | 2 | 5000 | 10000 |