MIMO, Performance Measurement of OSTBC and Alamouti Space Time Block Codes

Recent advances in wireless communication systems have increased the throughput over wireless channels and networks. At the same time, the reliability of wireless communication has been increased. As a result, customers use wireless systems more often.

In wireless communication, error free transmission can be achieved by deploying multiple antennas whether at transmitter or receiver side.4^th generation of wireless can be achieved by using MIMO in combination with OFDM. MIMO multiplexing (spatial multiplexing) and diversity (space time coding) having OFDM modulation scheme are the main areas of focus in our study. MIMO multiplexing increases a network capacity by splitting a high signal rate into multiple lower rate streams. MIMO allows higher throughput, diversity gain and interference reduction.

Data will be encoded using STBC. Advantage of using STBC is that no feedback is being required to get the channel information .Receiver complexity is also being reduced. Simplest of those is Alamouti STBC. After that, Comparison will be made among different space time block codes in order to find out the best one.

Authors

Sidra Ghayour

Maham Rashid

Saleha Maqsood

A Secure Wireless Interface Between PDAs

The purpose of this project is to develop a wireless interface between two PalmPilot or HandSpring devices using two Motorola Talkabout radios. A third Talkabout-PDA would be used during testing, to try and intercept messages between the first two systems.

Authors

Michael R. Hale (CprE)

Jeremy Lee Kohlhaas (EE)

David J. Inman (CprE)

Hassan Rashid (CprE)

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Personal Medical Assistant

Many people suffer such  medical conditions that they have to take multiple medications more than once a day for long duration of time. If they fail to take these medications on schedule causes significant health consequences. A survey of group of doctors, healthcare providers and patients have completed an ongoing previous project, to determine the desired requirements for a two-part system. A small hand-held device as a first part, which will remind people to take their medications. A set of software as a second part for a personal computer in a doctor's office. When the hand-held device is connected to the personal computer, a medical staff person will enter the medication schedule into the personal computer and download it into the hand-held device. This part of the project will develop an expanded version of the first system. The new system will allow a person to enter vital information, such as blood pressure, pulse, temperature, and blood sugar level into the expanded hand-held device as requested by the doctor at specific times between appointments with the doctor. When prompted by the device, the person would enter the requested information. The recorded information would be retrieved and uploaded to the personal computer in the doctor's office for review by the doctor, during the next appointment with the doctor.

Author

Mark Finn (EE)
Ryan Holdmeyer (CprE) 
Todd Magee (EE)
Benjamin Potter (EE)
Chandra Sellappan (CprE)
Tabitha Smith (CprE)
Melanie Wittry (EE)     

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An Android based Monitoring and Alarm System for Patients with Chronic Obtrusive Disease

By making use of recent technologies remote monitoring of physiological parameters in patients is carried out because Consistent monitoring of vital health parameters is an important issue in the medical industry. This allows communication between a patient and medical personnel using a smart-phone, which will collect, analyze and transfer heart rate and oxygen saturation data for subsequent review by a medical professional.

It is necessary to clarify the nature of the correlation between these medical parameters, Before any on-line analysis is performed on the phone. In the current thesis we establish connection between a patient wearing a pulse-oxymeter and a smart-phone running Android and perform continuous data collection. All measurements were done in consultation with medical facility and involved real patients.

The data obtained is subsequently analyzed using change point detection and anomaly detection algorithms in off-line mode. Both techniques are complementary to each other and showed reliable results which could be useful for a medical review.

Author

Koshmak, Gregory

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Building And Experimentally Evaluating a Smart Antenna for Lowpower Wireless Communication

In order to minimize this wasted energy and traffic collisions, is to use another type of antenna called “smart antenna”. These antennas can use select able radiation patterns depending on the situation and thus drastically minimize the unnecessary energy waste. Smart antennas also provide the ability to sense the direction of incoming signals which is favorable for physical layout mapping such as orientation.

This project shows the prototyping of a new type of smart antenna called the SPIDA smart antenna. This antenna is used to produce smart antenna designed for the 2.4 GHz frequency band. The SPIDA smart antenna can use sixty-four different signal patterns with the control of six separate directional modes, amongst these patterns are six single direction patterns, an omnidirectional signal pattern and fifty-six combi-direction patterns. The study presents complete building instructions, evaluation data and functional drivers for the SPIDA smart antenna.

Author

Öström, Erik

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