Vision is a beautiful gift to human beings by GOD. Vision allows people to perceive and understand the surrounding world. Till date blind people struggle a lot to live their miserable life. In the presented work, a simple, cheap, friendly user, virtual eye is designed and implemented to improve the mobility of both blind and visually impaired people in a specific area. The presented work includ...

The performance and complexity of blind algorithms in a digital receiver is dependent on the pre lter prior to discretization of the received continuous time signal and the sampling rate. This paper shows that symbol spaced blind equalization algorithms are in general sub-optimal, since a matched lter cannot be used. We show that, for fractionally spaced equalizers, the prelter can be a general...

In blind detection, a set of candidates has to be decoded within a strict time constraint, to identify which transmissions are directed at the user equipment. Blind detection is required by the 3GPP LTE/LTE-Advanced standard, and it will be required in the 5th generation wireless communication standard (5G) as well. Polar codes have been selected for use in 5G: thus, the issue of blind detectio...

The blind and the visually impaired are in a unique position to appreciate and make functional use of haptic devices. Designing devices for the blind is, however, more arduous than many researchers and inventors expect. It is thus important to fully understand the needs and requirements of that community before attempting to create devices for them. It is also important to learn from past resea...

Photography is a visual way to capture a moment in time. Photos can be used for artistic expression, and to remember significant events. Because photo taking, organizing and sharing traditionally requires visual information, those with no or limited sight often have problems with these activities. Previous work has made photo capturing without sight easier, however, there is little work that ma...

This paper considers a scenario for multi-input multi-output (MIMO) communication systems when perfect channel state information at the transmitter (CSIT) is given while the equivalent channel state information at the receiver (CSIR) is not available. Such an assumption is valid for the downlink multi-user MIMO systems with linear precoders that depend on channels to all receivers. We propose a...

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People who are blind can be at a disadvantage in social situations because face-to-face communication relies heavily on non-verbal cues. Lack of access to cues such as eye contact can sometimes lead to awkward situations, such as answering a question that was directed to another person. This problem is compounded by the fact that sighted people are not always aware of their use of these nonverb...

This paper presents guidelines for the design of self-administered surveys for visually impaired and blind people within a mixed mode approach. The different needs of the target group are fulfilled by offering different modes of participation (paper-based, braille-based, Web-based). Reading aids have in common that they enhance the focus of a specific piece of text or single word. This advantag...

Vision is a beautiful gift to human beings by GOD. Vision allows people to perceive and understand the surrounding world. Till date blind people struggle a lot to live their miserable life. In the presented work, a simple, cheap, friendly user, virtual eye is designed and implemented to improve the mobility of both blind and visually impaired people in a specific area. The presented work includ...