This paper is concerned with the design of a wireless data transmission which provides Un-equal Error Protection (UEP). A novel Superposition Multi Rate Coded Modulation (SMRCM) system has been introduced. In the proposed SMRCM, the user data bit stream can be divided into two bit streams. The first bit stream represents the region of High Priority (HP), while the second represents the region o...

Rights Copyright (c)1991 IEEE. Reprinted from Electronics Letters, 27(17), 1991, 1571-1573. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of JAIST's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promot...

This paper describes a multi-rate codec family developed as a potential candidate for the GSM Adaptive Multi Rate (AMR) codec standard. The codec family consists of the GSM Enhanced Full Rate (EFR) codec [I] and lower bit-rate extensions thereof: The codec family consists of several codecs, i.e., modes that have different bit-rate partitionings between source coding and error protection. All th...

This paper presents a modification for robust minutiae based fingerprint verification methods that use Delaunay triangulations. The purpose of this modification is to decrease the number of comparison operations and the error rates within the matching process, by doing a full analysis of the Delaunay triangles. From this full analysis, a modified method was proposed. The identified minutiae rep...

This research is aimed at analyzing and improving automatic pronunciation error detection in a second language. Dutch vowels spoken by adult non-native learners of Dutch are used as a test case. A first study on Dutch pronunciation by L2 learners with different L1s revealed that vowel pronunciation errors are relatively frequent and often concern subtle acoustic differences between the realizat...