User capacity of a power controlled CDMA system with multiple base stations

Viswanath, Pramod; Anantharam, Venkat

doi:10.1109/itcom.1999.781395

Cited by 5 publications

(1 citation statement)

References 6 publications

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“…In a S-IoT based on the spectrum spreading technique, the chip rate is generally constant since the authorized bandwidth is limited and fixed. Therefore, different data rates will result in those different lengths of the spreading sequences should be employed, which will bring different effects on user capacity [14][15][16][17].…”

Section: User Capacity Analysismentioning

confidence: 99%

User Capacity Analysis of Space-Based Internet of Things with Multibeam Techniques

Zhang

Sun

Liang

et al. 2022

Wireless Communications and Mobile Computing

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Space-based Internet of Things (S-IoT) utilizes the characteristics of satellite network coverage, strong antidestructiveness, and full-time work to realize large-scale sensing and interconnection of everything in the sky, land, sea, and air. The user capacity of S-IoT satellites is mainly determined by beam design, communication schemes, satellite-to-earth links, and communication protocols, which directly affect the system capacity and operational capabilities of S-IoT. This paper proposes an S-IoT satellite user capacity analysis model with multibeam and spread spectrum technology. Taking into account the randomness of user distribution, the difference in transmit power, and different spreading sequences, the user capacity of S-IoT satellites was simulated and compared in different scenarios. Based on these results, this article analyzes the key factors affecting user capacity, which will provide a valuable reference for S-IoT design, link optimization, and power selection.

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Section: User Capacity Analysismentioning

confidence: 99%