Special Issue on Digital Broadcasting Technology ================================================ . FOREWORD ....................................................... 1443 Tomio KISHIMOTO INVITED PAPERS ============== . IDUN: A Broadcast Multimedia System ............................ 1444 Anders AHL PAPERS ====== . Transmission Characteristics of DQPSK-OFDM for Terrestrial Digital Broadcasting Systems ........................................... 1451 Masafumi SAITO, Shigeki MORIYAMA, Shunji NAKAHARA and Kenichi TSUCHIDA . Adaptively Weighted Code Division Multiplexing for Hierarchical Digital Broadcasting ........................................... 1461 Hiroyuki HAMAZUMI, Yasuhiro ITO and Hiroshi MIYAZAWA . Development of a Trellis-Coded 8PSK Modem and Its Transmission Performance .................................................... 1468 Yuichi IWADATE and Tetsuomi IKEDA . Transport Structure for Integrated Services Digital Broadcasting ....................................................... 1474 Naoki KAWAI, Kouji OHSAKI, Takeshi KIMURA and Seiichi NAMBA . A Study on Objective Picture Quality Scales for Pictures Digitally Encoded for Broadcast .......................................... 1480 Hiroyuki HAMADA and Seiichi NAMBA . An Efficient Encoding of DCT Blocks with Block-Adaptive Scanning ....................................................... 1489 Jong Hwa LEE, Su Won KANG, Kyeong Ho YANG and Choong Woong LEE . A Study on Power Assignment of Hierarchical Modulation Schemes for Digital Broadcasting ........................................... 1495 Masakazu MORIMOTO, Hiroshi HARADA, Minoru OKADA and Shozo KOMAKI . Portable Digital Satellite News Gathering (SNG) RF Terminal Using a Flat Antenna ................................................... 1501 Takao MURATA, Hideo MITSUMOTO, Masaru FUJITA, Shoji TANAKA, Kouichi TAKANO, Kazuo IMAI and Noboru TOYAMA Regular Section =============== PAPERS ====== [Communication Networks and Services] . Comparison of System-Sharing Configurations for Narrowband and Video Distribution Services .......................................... 1511 Hideyo MORITA, Motoi IWASHITA and Noriyuki IKEUCHI . Analysis of an ATM Multiplexer with Correlated Real-Time and Independent Non-real-time Traffic .............................. 1521 Chung-Ju CHANG, Jia-Ming CHEN and Po-Chou LIN [Switching and Communication Processing] . Traffic Analysis of Multimedia Queueing System with Poisson and Batch Poisson Packet Arrivals .................................. 1530 Natsuko SONODA and Iwao SASASE . Virtual Rate-Based Queueing: A Generalized Queueing Discipline for Switches in High-Speed Networks ................................ 1537 Yusheng JI and Shoichiro ASANO . Rearrangeability and Connectivity of Multistage Interconnection Networks with Nearest-Neighbour Interconnections ............... 1546 Josef GIGLMAYR [Communication Theory] . Double-Stage Threshold-Type Foreground-Background Congestion Control for Common-Store Queueing System with Multiple Nonpreemptive Priority Classes ............................................... 1556 Eiji SHIMAMURA and Iwao SASASE [Communication Systems and Transmission Equipment] . Phase Noise Evaluation Using the Maximum Time Interval Error and Time Variance for Network Synchronization ...................... 1564 Atsushi IMAOKA and Masami KIHARA . The Range of Baseband and Passband HDSLs in NTT's Local Networks ....................................................... 1570 Seiich YAMANO . A New Method for Isochronous Bandwidth Allocation in FDDI-II Networks ....................................................... 1583 Jung-Shyr WU and Sheng-Cheng YEH [Optical Communication] . Performance Analysis of Coherent Optical POLSK Receives with Local Oscillator Intensity Noise and Unmatched Quantum Efficiencies .. 1590 Hideyuki UEHARA, Tomoaki OHTSUKI and Iwao SASASE [Power Supply] . A Novel Low-Power Dissipation and High-Speed Converter-Control-IC for the Transmitting Amplifier of Digital Portable Telephones .. 1600 Nobuhiko YAMASHITA, Takuji SERADA, Tatsuo SAKAI, Kazuo TSUKAMOTO and Toshiaki YACHI . Control Characteristics of Series Resonant Converter with Parallel Resonant Circuit under Parallel Resonant Frequency ............. 1607 Akio NISHIDA, Kazurou HARADA, Yoshiyuki ISHIHARA and Toshiyuki TODAKA [Communication Device and Circuit] . Stuff Synchronization Circuit Design for HDTV Transmission on SDH Network ........................................................ 1614 Yasuyuki OKUMURA and Ryozo KISHIMOTO [Antennas and Propagation] . FDTD Analysis of Unit-Radiator for a Circularly Polarized Printed Array Antenna Composed of Strips and Slots ..................... 1621 Motoyuki NAITO, Shin-ichiro MATSUZAWA and Koichi ITO LETTERS ======= [Communication Networks and Services] . A New Traffic Shaping Mechanism for ATM Networks ............... 1628 Francis PITCHO and Naoaki YAMANAKA . Comments on gResequencing Deay for a Queueing System with Multiple Servers under a Threshold-Type Schedulingh .................... 1632 Li-Der CHOU and Jean-Lien C. WU . CDV Tolerance for the Mapping of ATM Cells onto the Physical Layer ....................................................... 1638 Kei YAMASHITA and Youichi SATO [Radio Communication] . Phase/Frequency Modulation Combined with Multilevel Block Codes 1642 Woon Geun YANG and Choong Woong LEE [Antennas and Propagation] . Right-Angle H-Plane Waveguide Double Bend ...................... 1647 Jae W. LEE and Hyo J. EOM . ABSTRACTS (IEICE Trans., Vol.J77-B-I, J77-B-II, No.12 in Japanese) ....................................................... 1650 . 1994 INDEX ..................................................... 1655