Abstract
Building upon the study of a single-macrocell/single-microcell CDMA system in [1], we examine the performance of a specific example of such a two-tier system. In particular, the microcell base is converted into a data access point. Data access points (DAP's) are limited-range base stations that provide high-speed access to one user at a time. The microcell (or DAP) user operates on the same frequency as the macrocell users and has the same chip rate. However, it adapts its spreading factor (and thus its data rate) in accordance with interference conditions. By contrast, the macrocell serves multiple simultaneous data users, each with the same (fixed) rate. We analyze the achieveable throughput for individual microcell users and present a simple, accurate approximation for its probability distribution. We also present average throughputs, both per-user and total. Our numerical results highlight the impact of a desensitivity parameter used in the base-selection process.
Original language | English (US) |
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Pages (from-to) | 922-926 |
Number of pages | 5 |
Journal | IEEE Vehicular Technology Conference |
Volume | 58 |
Issue number | 2 |
DOIs | |
State | Published - 2003 |
Event | 2003 IEEE 58th Vehicular Technology Conference, VTC2003-Fall - Orlando, FL, United States Duration: Oct 6 2003 → Oct 9 2003 |
All Science Journal Classification (ASJC) codes
- Computer Science Applications
- Electrical and Electronic Engineering
- Applied Mathematics