Abstract
The concept of virtual MIMO (multiple-input multiple output) has been
proposed to tackle the challenges arising from high data rate wireless
communications. Connecting a central unit (CU) with remote antenna units
(RAUs), Radio over Fibre (RoF) links are an essential part of the virtual MIMO
systems. This paper considers the adaptive compensation of the nonlinear
distortions introduced by a RoF link and power amplifier (PA) connected in
series. For the predistorter, we study the effects of the fixed point
calculation to the performance. Our simulation results indicate that a fixed
point predistorter with reasonably low word lengths gives almost the same
performance as a floating point predistorter. Hence, it is possible to
implement a feasible, low cost and energy consumption, fixed point
predistorter into a field-programmable gate array (FPGA).
| Original language | English |
|---|---|
| Title of host publication | 2010 Future Network & Mobile Summit |
| Publisher | IEEE Institute of Electrical and Electronic Engineers |
| Number of pages | 8 |
| ISBN (Electronic) | 978-1-905824-16-8 |
| ISBN (Print) | 978-1-905824-18-2 |
| Publication status | Published - 2010 |
| MoE publication type | Not Eligible |
| Event | 2010 Future Network and Mobile Summit - Florence, Italy Duration: 16 Jun 2010 → 18 Jun 2010 |
Conference
| Conference | 2010 Future Network and Mobile Summit |
|---|---|
| Country/Territory | Italy |
| City | Florence |
| Period | 16/06/10 → 18/06/10 |
Keywords
- fixed point implementation
- predistortion
- radio over fibre, virtual MIMO