Skip to main content

Table 1 Key features of high-speed rail broadband mobile communications

From: Radio environment map-based cognitive Doppler spread compensation algorithms for high-speed rail broadband mobile communications

Feature Description
Doubly selective channel The high-speed rail radio channel is both time selective and frequency selective
Fast and frequent (group) handover All passengers in the train move at the same direction and conduct handover almost simultaneously, resulting high handover failure rate due to signaling storm and long process delay
Predictable train location and channel condition The high-speed rail train operates on a fixed course repetitively. This is in sharp contrast to traditional cellular systems where the mobile stations move randomly