Open Access. Powered by Scholars. Published by Universities.®
- Keyword
-
- SDR (2)
- 802.11ax (1)
- Analog (1)
- Autonomous Vehicles (1)
- Autonomy (1)
-
- CSMA (1)
- Communication systems (1)
- Economics (1)
- Encryption (1)
- Error control coding (1)
- Error correction (1)
- Ethics (1)
- FEC (1)
- Forward error correction (1)
- Machine Learning (1)
- Neural Network (1)
- OFDMA (1)
- Radios (1)
- Signal processing (1)
- Software radios (1)
- Stream cipher (1)
- Swarm intelligence (1)
- UAV swarms (1)
- Voice communication (1)
- Wime Project (1)
- Wireless communications (1)
Articles 1 - 6 of 6
Full-Text Articles in Engineering
Applications, Challenges, And Research Issues For Enabling A Uav Swarm, Jennifer Hahner
Applications, Challenges, And Research Issues For Enabling A Uav Swarm, Jennifer Hahner
Senior Honors Theses
Unmanned aerial vehicle (UAV) swarms have the potential to be useful in numerous applications due to their versatility and ability to operate without human intervention. However, this promising technology still requires further investigation, research, and testing before UAV swarms can be implemented extensively. The level of human intervention needed to control the system determines the differing levels of autonomy for UAV swarms. For swarms to become more independent, efficient algorithms for task and path planning are essential. In addition, accurate communication is essential for swarms to be able to coordinate and accomplish tasks successfully. This paper seeks to provide a …
The Challenges Facing Autonomous Vehicles And The Progress In Addressing Them, Garrett Johnson
The Challenges Facing Autonomous Vehicles And The Progress In Addressing Them, Garrett Johnson
Senior Honors Theses
Autonomous vehicles are an emerging technology that faces challenges, both technical and socioeconomic. This paper first addresses specific technical challenges, such as parsing visual data, communicating with other entities, and making decisions based on environmental knowledge. The technical challenges are to be addressed by the fields of image processing, Vehicle to Everything Communication (V2X), and decision-making systems. Non-technical challenges such as ethical decision making, social acceptance, and economic pushback are also discussed. Ethical decision making is discussed in the framework of deontology vs utilitarianism, while social acceptance of utilitarian autonomous vehicles is also investigated. Last, the likely economic impact is …
Implementing Wifi Ax In Sdr, Elijah Barker
Implementing Wifi Ax In Sdr, Elijah Barker
Senior Honors Theses
Both Carrier Sensing Multiple Access (CSMA) and Orthogonal Frequency Division Multiple Access (OFDMA) are vital techniques for WiFi radio operations. CSMA deals with decentralized sharing of the medium, and OFDMA deals with dividing up the channel into multiple smaller allocations of the channel to transmit data from multiple users simultaneously. OFDMA is a new multiple access scheme introduced in the upcoming IEEE 802.11ax standard. This paper details research with Dr. Bae in implementing portions of the upcoming 802.11ax standard using software defined radio. First, this paper provides in-depth setup information for the Wime Project and explains the Wime Project implementation …
Simple Secrecy: Analog Stream Cipher For Secure Voice Communication, John M. Campbell
Simple Secrecy: Analog Stream Cipher For Secure Voice Communication, John M. Campbell
Senior Honors Theses
Voice signals are inherently analog, and some voice communication systems still utilize analog signals. Existing analog cryptographic methods do not satisfactorily provide cryptosecurity for communication systems due to several limitations. This paper proposes a novel means of provided cryptosecurity for analog signals without digitization; thereby avoiding the latency which results from ADC/DAC conversions. This method utilizes the principles of the digital stream cipher, generating instead a continuous pseudorandom analog key stream signal which is transformed with the original analog signal to create an encrypted ciphertext signal which is statistically independent of the original signal and the key stream signal. The …
Studies In Software-Defined Radio System Implementation, Harold A. Haldren Iii
Studies In Software-Defined Radio System Implementation, Harold A. Haldren Iii
Senior Honors Theses
Over the past decade, software-defined radios (SDRs) have an increasingly prevalent aspect of wireless communication systems. Different than traditional hardware radios which implement radio protocols using static electrical circuit, SDRs implement significant aspects of physical radio protocol using software programs running on a host processor. Because they use software to implement most of the radio functionality, SDRs are much more easily modified, edited, and upgraded than their hardware-defined counterparts. Consequently, researchers and developers have been developing previously hardware-defined radio systems within software. Thus, communication standards can be tested under different conditions or swapped out entirely by simply changing some code. …
Studies In Error Correction Coding, Hannah Kirse
Studies In Error Correction Coding, Hannah Kirse
Senior Honors Theses
For a proper understanding of the implementation of error correction coding schemes, a basic knowledge of communication channels and networks is necessary. Communication channels incur several types of errors, including noise and signal attenuation. Consequently, the benefits of a particular error control scheme are determined by the errors which occur most frequently. First, the types of transmissions across which errors occur will be considered. Subsequently, the types of errors that can appear during these transmissions and a short discussion of the cause of errors are necessary to understand the several types of errors that can occur. Afterward, the implementation of …