A Hybrid Extension for IP Multicasting in Push-to-talk over Cellular Systems

Journal title

International Journal of Electronics and Telecommunications




vol. 58


No 1

Publication authors

Divisions of PAS

Nauki Techniczne


International Journal of Electronics and Telecommunications (IJET, eISSN 2300-1933, untill 2013 also print ISSN 2081-8491) is a periodical of Electronics and Telecommunications Committee of Polish Academy of Sciences and it is published by Warsaw Science Publishers of PAS. It continues tradition of the Electronics and Telecommunications Quarterly (ISSN 0867-6747) established in 1955 as the Rozprawy Elektrotechniczne. The IJET is a scientific periodical where papers present the results of original, theoretical, experimental and reviewed works. They consider widely recognized aspects of modern electronics, telecommunications, microelectronics, optoelectronics, radioelectronics and medical electronics.

The authors are outstanding scientists, well‐known experienced specialists as well as young researchers – mainly candidates for a doctor's degree. The papers present original approaches to problems, interesting research results, critical estimation of theories and methods, discuss current state or progress in a given branch of technology and describe development prospects. All the papers published in IJET are reviewed by international specialists who ensure that the publications are recognized as author's scientific output.

The printed periodical is distributed among all those who deal with electronics and telecommunications in national scientific centers as well as in numeral foreign institutions, and it is subscribed by many specialists and libraries. Its electronic version is available at

The papers received are published within half a year if the cooperation between author and the editorial staff is efficient. The papers may be submitted to the editorial office by the journal web page


Polish Academy of Sciences Committee of Electronics and Telecommunications




ISSN 2081-8491 (until 2012) ; eISSN 2300-1933 (since 2013)


"Push To Talk over Cellular requirements," Open Mobile Alliance (OMA), SPECIFICATION, Jun. 2006, requirements Document OMA-RD-PoC-V1-0. ; "Push To Talk over Cellular (PoC) - Architecture," Open Mobile Alliance (OMA), SPECIFICATION, Jun. 2006, architecture Document OMA-AD-PoC-V1-0. ; "Push To Talk over Cellular control plane," Open Mobile Alliance (OMA), SPECIFICATION, Jun. 2006, technical Specification OMA-TS-PoC-ControlPlane-V1-0. ; "Push To Talk over Cellular user plane," Open Mobile Alliance (OMA), SPECIFICATION, Sep. 2007, technical Specification OMA-TS-PoC-UserPlane-V1-0. ; "Push To Talk over Cellular user plane," Open Mobile Alliance (OMA), SPECIFICATION, Sep. 2007, technical Specification OMA-TS-PoC-XDM-V1-0. ; Cruz R. (2009), Push-To-Talk in IMS Mobile Environment, null. ; Kim P. (2005), IMS-based Push-to-Talk over GPRS/UMTS, null. ; Pillai K. (2009), Optimizations for Push-To-Talk in Wireless Networks Efficient Management of Call Setup Latency, null. ; Jiang H. (2009), Enhanced Floor Control Protocol for PoC Application in Data Packet Voice Communication, null. ; Tsaur D.-J. (2010), Efficiency Analysis and Improvement of SIP-based Push-to-Talk over Cellular, null. ; Tsai K.-Y. (2009), The Speech Quality Analysis of Push-to-Talk Services, null. ; Schulzrinne H. (2003), RTP: a transport protocol for Real-Time applications, Internet Engineering Task Force, RFC 3550. ; Hauge M. (2002), Multicast in 3G Networks: Employment of Existing IP Multicast Protocols in UMTS, null. ; Mkwawa I.-H. (2002), Open IMS Core with VoIP Quality Adaptation, null.