Maximising Bandwdith Efficency of Statistical Multiplexer Architecture using Frame Droping Methods

Asadullah Shah, Humaira Dar, Iftikhar A Syed

Abstract


It is generally considered that remote and rural telephone users generate less traffic as compared to urban area users. This lowers the attraction of investment in rural areas by the telecommunications companies and service providers. The financial implications of wiring a vast area for low telephone traffic causes most telephone service providers to ignore those regions. Still, it is known that telecommunications are essential to the economic development of a region and that traffic increases rapidly as soon as the service is available. A satellite–based telephone network can provide efficient long distance telephone service to remote rural communities at a lower cost than land-based wired networks in most cases. Mobile satellite systems already provide this service, but are limited in capacity and charge high per-minute fees for the satellite link. Small earth stations and GEO satellites can provide this service more efficiently and at lower cost. On top of that, bandwidth efficient multiplexing with compressed speech, Voice Activity Detection (VAD) and Packet discarding methods can even further reduce the cost of service for the users in rural areas. In this paper, Statistical Time Division Multiplexer (STDM) architecture was simulated. Two packet discarding methods, random packet discarding and cyclic packet discarding are used to maximize bandwidth utilization along with VAD. Results indicate that considering monologue speech source, with 80%, activity for each 6.4 kbps sources, on a channel of 64 kbps, 12 users can be allowed to be multiplexed instead of 9, therefore a Digital Speech Interpolation (DSI) advantage of 1.33 is achieved with 3% packet loss. Furthermore, it is observed that cyclic packet discarding technique perform better than random packet discarding in terms of subjective quality




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References


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DOI: http://dx.doi.org/10.22555/pjets.v3i1.688

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Chief Editor

Prof. Dr. Ejaz Ahmed 
Dean
College of Computer Science & Information Systems

Editor

Prof Dr. S. M. Aqil Burney

Associate Editors

Prof. Dr. Tariq Rahim Soomro
Dr. Muhammad Mansoor Aalam

Publication Coordinator
Konpal Darakshan

Editorial Advisory Board (Internal)

Dr. Syed Irfan Hyder
Dr. Mohammad Irshad Khan
Dr. Shahid Amjad
Dr. Abdul Rauf Farooqui
Dr. Syed Iftikhar Ali
Dr. Tajuddin Islamuddin
Dr. Muhammad Danish Khan
Dr. Imran Majid
Dr. Fatima Riaz
Dr. Zeeshan Shahid
Ms. Seema Ansari

Editorial Advisory Board (International)

Prof. Dr. Mazliham Mohd Su'ud, President, Universiti Kuala Lumpur, Malaysia
Prof. Dr. Ghassan Al-Qaimari, President, Emirates College of Technology, Abu Dhabi, UAE
Prof. Dr. Patrice Boursier, Universite de La Rochelle, La Rochelle, France
Prof. Dr. Mudassir Uddin, Professor, University of Karachi, Pakistan
Dr. Nadeem Doudpota, Associate Professor, Al-Baha University, KSA
Dr. Haithem Abdelrazaq Almefleh, Associate Professor, Yarmouk University, Yarmouk, Jordan
Dr. Saiful Islam Ansari, Assistant Professor, University of Tabuk, Saudi Arabia

Member Editorial Review Board (International – Academia)

Dr. Asadaullah Shah, Professor, International Islamic University, MalaysiaDr. Hasan Wahba, President American College of Dubai, United Arab Emirates (UAE)
Dr. Tahseen Jilani, Assistant Professor, University of Manchester, UKDr. Atif Memon, Associate Professor, The University of Maryland, USA
Dr. Syed Waliullah Shah, University Sains, MalaysiaDr. Inayatullah Shah, International Islamic University, (Kuantam), Malaysia
Dr. Salahttin Kuru, Kemeburgaz University, TurkeyDr. Soon Min, INTI International University, Malaysia
Dr. Shahrulniza Musa, Professor, Malaysian France Institute, Universiti Kuala Lumpur, Bandar Baru Bangi, MalaysiaDr. R. Praveen Sam, Professor, Department of Computer Science and Engineering, G. Pulla Reddy Engineering College, KURNOOL, India
Dr. Manzoor Ahmed Hashmani, Associate Professor, University Technology Petronas, MalaysiaDr. Alveera Mehdi, Professor, Aligarh Muslim University, Aligarh, India

Dr. Sajjad Waheed, Professor, Department of Information and Communication Technology, Mawlana Bhashani Science and Technology University, Tangail 1902, Bangladesh

Dr. Kushairy Bin Abdul Kadir, Associate Professor, British Malaysian Institute, Universiti Kuala Lumpur, Gombak, Malaysia
Dr. Mohammad Hameed Ahmed AlTaei, Assistant Professor, Applied Sciences College, Sohar, OmanDr. Eiad Yafi, Associate Professor, Malaysian Institute of Information Technology Universiti, Malaysia
Dr. Muhammad Azam Sheikh, Assistant Professor, Chalmers University, SwedenDr. Safeeullah Soomro, Postdoc Dean College of Computer Studies, AMA Int. University, Bahrian
Dr. Aymen Adil Belghith, Assistant Professor, University of Sfax, Sfax,TunisiaDr. Radwan Alsadiq Alqirmazi, Assistant Professor, University of Sfax, Sfax,Tunisia
Dr. Mohammad Arif Amin, Assistant Professor, Higher College of Technology, Abu Dhabi Men’s College, Abu Dhabi, United Arab Emirates (UAE)Dr. Ismat Aldmour, Assistant Professor, Al-Baha University, Kingdom of Saudi Arabia (KSA)
Dr. AbdulRahman Ahmed Mohammed Al-Sewari, Senior Lecturer, Universiti Malaysia Pahang, Pahang, MalaysiaDr. Mohammed A. Afifi, Director, Associate of Science in Computer Science, Al Dar University College, Dubai, United Arab Emirates (UAE)
Dr. Youssef Ahmed Masmoudi, Assistant Professor, Saudi Electronic University, Jeddah male Campus, Kingdom of Saudi Arabia (KSA)Dr. Zulfiqar Memon, Assistant Professor, Ajman University of Science & Technology, Ajman, United Arab Emirates (UAE)
Dr. Abdul Basit Samsuddin Banga, Assistant Professor, Saudi Electronic University, Jeddah male Campus, Kingdom of S. Arabia (KSA)Dr. Mohamad Ismail Sulaiman, Senior Lecturer, British Malaysian Institute, Universiti Kuala Lumpur, Gombak, Malaysia
Dr. Syed Faiz Ahmed, Senior Lecturer, British Malaysian Institute, Universiti Kuala Lumpur, Gombak, Malaysia

Dr. Jawad Ali Shah, Senior Lecturer, British Malaysian Institute, Universiti Kuala Lumpur, Gombak, Malaysia

Dr. Sarfraz Nawaz Brohi, Lecturer, Taylor’s Unversity, Lakeside Campus, Malaysia

Dr. Fahad Sikander, Assistant Professor, Saudi Electronic University, Kingdom of Saudi Arabia (KSA)


Member Editorial Review Board (International – Non Academia)

Dr. Abdul Razaque Memon, Director Solution Marketing at Huawei Technology, AustraliaDr. Syed Abbas, Project Director, NetSys Technical Services, Business Bay, Duabi, United Arab Emirates (UAE)
Dr. Muntasser Khater, Educational Senior Consultant, CAN DU e-Business, Dubai, United Arab Emirates (UAE) 

Member Editorial Review Board (National – Academia)

Dr. Madad Ali Shah, Professor and Vice Chancellor, BBS University of Technology & Skill Development, KhairpurDr. B. S. Chaudhry, Professor, Mehran University of Engineering & Technology (MUET), Jamshoro
Dr. Mir Ghulam Hyder Talpur, Professor, University of Sindh, JamshoroDr. Imdad Ismaili, Professor, University of Sindh, Jamshoro
Dr. Syed Asif Ali, Professor, Sindh Maderessah Tul Islam University, KarachiDr. Mukhtiar Ali Unar, Professor, Mehran University of Engineering & Technology (MUET), Jamshoro
Dr. Syed Amir Iqbal, Associate Professor, NED University, KarachiDr. Syed Haider Shah, Associate Professor, Univeristy of Balochistan, Quetta
Dr. Talal Shrafat Rehmani, NUST, KarachiLt. Cdr. Dr. Asif Mansoor, NUST, Karachi
Dr. Faisal Maqbool Zahid, Associate Professor, University of Faisalabad 

Member Editorial Review Board (National – Non Academia)

Dr. Amir Khan, Ministry of Defense, Govt. of Pakistan, KarachiDr. Bahrawar Jan, Pakistan Bureau of Statistics, Islamabad