International Journal of Multimedia and Ubiquitous Engineering Vol.8, No.5 (2013), pp.41-50 http://dx.doi.org/10.14257/ijmue.2013.8.5.05 ISSN: 1975-0080 IJMUE Copyright ⓒ 2013 SERSC Cross Border Interference between IMT-Advanced and DVB-T in the Digital Dividend Band Walid A Hassan 1 , Han-Shin Jo 2 , Zaid A Shamsan 3,4 and Tharek A Rahman 1 1,4 Wireless Communication Center, Faculty of Electrical Engineering, Universiti Teknologi Malaysia, Malaysia 2 Dept. of Electronics & Control Engineering Hanbat National University, Korea 3 Communications and Computer Department, Faculty of Engineering and Information Technology, Taiz University, Taiz 4 Deanship of Academic Research, Al-Imam Mohammad ibn Saud Islamic University, Riyadh, Saudi Arabia walid.a.hassan@gmail.com, hsjo@hanbat.ac.kr, Shamsan22@gmail.com, tharek@fke.utm.my Abstract The 470–862 MHz band has recently incurred two major spectrum reallocations: the introduction of digital broadcasting (DB) and the allocation of the 790–862 MHz sub-band as a co-primary base for mobile services. While some countries have accomplished full digital switchover (DSO) and implemented DB as their platform for TV broadcasting, others are still in the trial phase. Until 2015, this sub-band will be usable for either broadcasting or mobile service; lack of coordination between neighboring countries could thus result in co-channel interference. Using a Monte Carlo method, we evaluated the minimum separation distance (MSD) and carrier frequency separation necessary to achieve compatibility. Digital video broadcasting-terrestrial (DVB-T) systems can be protected from international mobile telecommunications-advanced (IMT-A) systems using a carrier frequency separation of 17 MHz. Although IMT-A systems are not protected from DVB-T in this sharing scenario, coexistence between adjacent channels is ensured without recourse to interference mitigation by use of a carrier frequency of at least 15 MHz. Keywords: Compatibility Analysis; Spectrum Sharing; Monte Carlo Methodology, Interference, Coexistence, Cross Border Interference 1. Introduction In the latest Regional Radiocommunications Conference in 2006 (RRC-06), the International Telecommunication Union (ITU) set deployment requirements for digital video broadcasting-terrestrial (DVB-T) service in Bands IV and V (i.e., 470–862 MHz) [1]. In 2007, Resolution 794 of the World Radio Conference (WRC-07) allocated this band as a co- primary basis for mobile and broadcasting services starting in 2015 and indicated that studies on sharing between the two services should be conducted [2]. In 2008, the European Commission directed the European Conference of Postal and Telecommunication (CEPT) to set the requirements for harmonizing spectrums between European Union countries; included in this mandate was the stated need to study technical conditions within the 790–862 MHz band. A detailed study was carried out [3] to identify