With the development of computer technology and Internet technology, more and more real-time error control principles are implemented. Based on research of error control technology, In this thesis, we implement data packet’s coding and decoding based on Reed-Solomon code through looking chart; and emulate the real-time error control systems that use error control methods of FEC and FEC/ ARQ. Ex...

Error detection and correction plays a very important role in data communication. Various codes such as convolutional and block codes are available for the purpose of error detection and correction. Among the block codes Reed-Solomon code provides several advantages. Reed-Solomon codes are powerful error-correcting codes that finds wide applications in many fields. The soft-decision decoding of...

OBJECTIVES This study sought to determine the prevalence of common bacterial sexually transmitted infections, including Chlamydia trachomatis and Neisseria gonorrhoeae, in women attending clinics in the Solomon Islands. METHODS We conducted a sexual health survey among women attending three nurse-led community outpatient clinics in August 2014, to establish the prevalence of bacterial sexuall...

To reduce storage overhead, cloud file systems are transitioning from replication to erasure codes. This process has revealed new dimensions on which to evaluate the performance of different coding schemes: the amount of data used in recovery and when performing degraded reads. We present an algorithm that finds the optimal number of codeword symbols needed for recovery for any XOR-based erasur...

The fruit-bat genus Pteralopex comprises the monkey-faced bats, a group of six endangered species found only in old-growth forests on certain islands in the south-west Pacific (the Solomon Islands and Fiji). The taxonomy of the genus is reviewed in detail and updated accordingly. Two ‘cryptic’ biological species are shown to occur in sympatry on both Bougainville and Choiseul in the northern So...

Reed-Solomon and BCH codes were considered as kernels of polar codes by Mori and Tanaka in [6] and Korada, Şaşoğlu, and Urbanke in [4] to create polar codes with large exponents. For codes of length l ≤ q, Mori and Tanaka showed Reed-Solomon codes give the best possible exponent, where q is the size of the input alphabet. However, considering larger matrices over Fq yields better exponents for ...

Up until now, we have seen bounds that tell us good codes should be possible but we didn’t know how to construct such codes explicitly. The binary Reed-Solomon code gave us good rate but poor distance. Intuitively, we should be able to concatenate it with an inner code that would “amplify” its distance. Enumerating and searching codes takes O(2) time, so we can’t just find one good inner code a...

These words come from the ancient king Solomon, famous for his wisdom....... and also for his many wives. Here he is urging us to “keep” something; to safeguard it, to value it, because it lies at the foundation of human well-being. It is not our medications or our laryngoscopes that Solomon wants us to protect. These are but tools in our hands to help us manage our medical tasks efficiently. N...

Under polynomial time reduction, the maximun likelihood decoding of a linear code is equivalent to computing the error distance of a received word. It is known that the decoding complexity of standard Reed-Solomon codes at certain radius is at least as hard as the discrete logarithm problem over certain large finite fields. This implies that computing the error distance is hard for standard Ree...

The astonishing performance of concatenated codes attracted many researchers and this has resulted in an explosive amount of literature since their introduction few years ago. As concatenation between codes did not actually arise from applying a pre-existing theory, most of their outstanding features remain to be explained. This paper gives some explanation of the concatenation between Reed Sol...