Capacity analysis of continuous-time time-variant asynchronous uplink wideband CDMA system

• This paper considers the capacity limit of an uplink wideband CDMA system. In order to make the studied results useful for the performance assessment of real cellular networks, various realistic assumptions are included in the problem. An equivalent discrete-time channel model is derived based on sufcient statistic for optimal decoding of transmit messages. The capacity regions are then characterized considering nite constellation and Gaussian input assumptions. For further insight, an analysis on the asymptotic capacity is considered, in which the conditions to simultaneously achieve the individual capacities are derived.

Subject headings

TEKNIK OCH TEKNOLOGIER  -- Samhällsbyggnadsteknik -- Transportteknik och logistik (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Civil Engineering -- Transport Systems and Logistics (hsv//eng)

Keyword

Continuous time systems

Asymptotic capacities

Capacity analysis

Capacity regions

Cellular network

Discrete-time channels

Optimal decoding

Performance assessment

Wideband CDMA systems

Code division multiple access

Publication and Content Type

ref (subject category)

kon (subject category)