Geographically Segmented Localcasting (GSL) aims to improve spectrum efficiency and deliver localized content by reusing frequencies across different geographic areas. However, this model is susceptible to co-channel interference among adjacent GSL towers, necessitating specific mitigation technologies to ensure reliable signal reception and maintain service quality. Common mitigation techniques include frequency planning, power control, directional antennas, advanced modulation and coding schemes, and signal processing methods that can effectively suppress or cancel interfering signals.

Biography:

Dr. Yiyan Wu is a Research Professor at Western University in London, Ontario. From 1992 to 2024, he served as a Principal Research Scientist at the Communications Research Centre Canada (CRC). His research interests include broadband multimedia communications, signal processing, and communication systems engineering. Dr. Wu was elected a Fellow of the IEEE in 2001 and a Fellow of the Canadian Academy of Engineering in 2013. He currently serves on the ATSC Board of Directors as the IEEE representative. In 2018, he was appointed a Member of the Order of Canada.