Research on downlink spectrum efficiency of 6G space earth integrated network high altitude platform base station

【 Abstract 】 future 6G The integrated network of heaven and earth can realize seamless communication coverage , As one of the near space network platforms HIBS It can be applied to network coverage in remote areas or emergency communication in disaster areas . Yes HIBS Downlink spectral efficiency has been studied , First, a single HIBS Sector structure and wide coverage continuous networking structure , Then deploy users randomly and calculate the received signal strength of users according to the simulation parameters , Analyze the received signal strength to select the actual access cell , Finally, through Monte Carlo simulation 3 Under frequency bands SINR And spectral efficiency CDF curve , And with the non terrestrial network 5G Compare the network speed . The results show that ,HIBS The downlink spectrum efficiency can meet the requirements of non terrestrial networks 5G Network speed requirements .

【 key word 】6G; Air space integrated network ;HIBS; Spectral efficiency

0    introduction

At present, China has entered 5G A new era of high-quality development ,5G The rapid development of not only effectively supports the construction of Digital China , Promote social and economic development , Achieve industrial quality improvement and efficiency , At the same time, it also has a profound impact on traffic 、 Medical care 、 health 、 Entertainment and other aspects of public life , Let people have a personal feeling about digital life . But in some remote rural areas 、 The vast grassland 、 Oceans and deserts , Subject to topographic conditions 、 The cost of investment 、 Technical realization and other factors , The construction of infrastructure is not complete , It is difficult for the current land mobile communication system to give full play to its advantages . To help narrow the digital divide between urban and rural areas , Achieve universal service , Meet the daily and emergency communication needs of special scenarios , The improvement of mobile network coverage is imminent .

Facing the new needs of human society for informatization , At present, the traditional terrestrial wireless communication system has begun to integrate various industrial advantages , At present 5G Technology based on next generation mobile communication technology （6G, 6th Generation Mobile Networks） Carry out technological evolution and innovation .6G The technology will be through the ground communication network 、 Heterogeneous integration of satellite communication network and high-altitude platform communication network , Continue to expand the breadth and dimension of terminal connections , Build ubiquitous communication infrastructure system . Through the construction of multi network integration development of space and space integration network ࿰