Coexistence of OFDM‐Based IMT‐Advanced and FM Broadcasting Systems

• Published in: ETRI journal Vol. 33; no. 2; pp. 279 - 282
• Main Authors: Shamsan, Zaid A., Rahman, Tharek A., Kamarudin, Muhammad R., Al‐hetar, Abdulaziz M., Jo, Han‐Shin
• Format: Journal Article
• Language: English
• Published: 한국전자통신연구원 01.04.2011
• Subjects: FM broadcasting; IMT‐Advanced systems; interference power; power spectral density analysis; Sharing analysis; 전자/정보통신공학
• ISSN: 1225-6463; 2233-7326
• DOI: 10.4218/etrij.11.0210.0211

Coexistence analysis is extremely important in examining the possibility for spectrum sharing between orthogonal frequency‐division multiplexing (OFDM)‐based international mobile telecommunications (IMT)‐Advanced and other wireless services. In this letter, a new closed form method is derived based on power spectral density analysis in order to analyze the coexistence of OFDM‐based IMT‐Advanced systems and broadcasting frequency modulation (FM) systems. The proposed method evaluates more exact interference power of IMT‐Advanced systems in FM broadcasting systems than the advanced minimum coupling loss (A‐MCL) method. Numerical results show that the interference power is 1.3 dB and 3 dB less than that obtained using the A‐MCL method at cochannel and adjacent channel, respectively. This reduces the minimum separation distance between the two systems, which eventually saves spectrum resources.