Computer Engineering CSE Seminar Topics and Reports

Definition TErrestrial Trunked RAdio (TETRA) standard was designed to meet some common requirements and objectives of the PMR and PAMR market alike. One of the last strong holds of analog technology in a digital world has been the area of trunked mobile radio. Although digital cellular technology has made great strides with broad support from a relatively large number of manufactures, digital trunked mobile radio systems for the Private Mobile Radio (PMR) and Public Access Mobile Radio (PAMR) market have lagged behind. Few manufacture currently offer digital systems, all of which are based on proprietary technology. However, the transition to digital is gaining momentum with the emergence of an open standard TETRA TETRA is a Digital PMR Standard developed by ETSI. It is an open standard offers interoperability of equipment and networks from different manufacturers. It is potential replacement for analog and proprietary digital systems. Standard originated in1989 as Mobile Digital...

Definition "Money in the 21st century will surely prove to be as different from the money of the current century as our money is from that of the previous century. Just as fiat money replaced specie-backed paper currencies, electronically initiated debits and credits will become the dominant payment modes, creating the potential for private money to compete with government-issued currencies." Just as every thing is getting under the shadow of "e" today we have paper currency being replaced by electronic money or e-cash. Hardly a day goes by without some mention in the financial press of new developments in "electronic money". In the emerging field of electronic commerce, novel buzzwords like smartcards, online banking, digital cash, and electronic checks are being used to discuss money. But how are these brand-new forms of payment secure? And most importantly, which of these emerging secure electronic money technologies will survive into the next ce...

Definition The Y2K38 problem has been described as a non-problem, given that we are expected to be running 64-bit operating systems well before 2038. Well, maybe. The Problem Just as Y2K problems arise from programs not allocating enough digits to the year, Y2K38 problems arise from programs not allocating enough bits to internal time.Unix internal time is commonly stored in a data structure using a long int containing the number of seconds since 1970. This time is used in all time-related processes such as scheduling, file timestamps, etc. In a 32-bit machine, this value is sufficient to store time up to 18-jan-2038. After this date, 32-bit clocks will overflow and return erroneous values such as 32-dec-1969 or 13-dec-1901. Machines Affected Currently (March 1998) there are a huge number of machines affected. Most of these will be scrapped before 2038. However, it is possible that some machines going into service now may still be operating in 2038. These may include process c...

Definition Criminals have long employed the tactic of masking their true identity, from disguises to aliases to caller-id blocking. It should come as no surprise then, that criminals who conduct their nefarious activities on networks and computers should employ such techniques. IP spoofing is one of the most common forms of on-line camouflage. In IP spoofing, an attacker gains unauthorized access to a computer or a network by making it appear that a malicious message has come from a trusted machine by "spoofing" the IP address of that machine. In the subsequent pages of this report, we will examine the concepts of IP spoofing: why it is possible, how it works, what it is used for and how to defend against it. Brief History of IP Spoofing The concept of IP spoofing was initially discussed in academic circles in the 1980's. In the April 1989 article entitled: "Security Problems in the TCP/IP Protocol Suite", author S. M Bellovin of AT & T Bell labs was...

INTRODUCTION The Universal Serial Bus (USB), with one billion units in the installed base, is the most successful interface in PC history. Projections are for 3.5 billion interfaces shipped by 2006. Benefiting from exceptionally strong industry support from all market segments, USB continues to evolve as new technologies and products come to market. It is already the de facto interconnect for PCs, and has proliferated into consumer electronics (CE) and mobile devices as well. The Wireless USB is the first the high speed Personal Wireless Interconnect. Wireless USB will build on the success of wired USB, bringing USB technology into the wireless future. Usage will be targeted at PCs and PC peripherals, consumer electronics and mobile devices. To maintain the same usage and architecture as wired USB, the Wireless USB specification is being defined as a high-speed host-to-device connection. This will enable an easy migration path for today's wired USB solutions. This paper tak...

INTRODUCTION Nature is a great place to go for inspiration when you want to see systems that are robust and have been around for millions of years. Nature provides the inspiration for swarm intelligence. Look at the emergent behavior observed in ants, termites, bees and others. We see very simple creatures, performing complex behavior as a group Consider the case of ant colony working together . The behaviour of ants has long fascinated scientists. These insects have the strength to carry food up to seven times their own body weight, and set up amazingly complex colonies, with social 'castes' in which every member has a role. In fact, ants are not only fascinating just to entomologists looking at them under the microscope. In recent years, computer scientists have been paying great attention to the way in which a colony of ants can solve complex problems; in particular, how it finds the shortest route to a food source. Each insect in a colony seemed to have its own a...