Capacity Improvement of MIMO Channel using Dirty Paper Coding
| Author(s) | : | Hemant Jain, Purneshwari Varshney |
| Institution | : | M. Tech. Scholar, Department of Electronics & Communication Engineering, JIET, Jodhpur |
| Published In | : | Vol. 1, Issue 11 — November 2014 |
| Page No. | : | 192-197 |
| Domain | : | Engineering |
| Type | : | Research Paper |
| ISSN (Online) | : | 2348-4470 |
| ISSN (Print) | : | 2348-6406 |
MIMO is abbreviation of Multiple Input Multiple Output. In wireless communication, MIMO technologyoffers significant increase in data throughput and link range without additional bandwidth. The dirty paper coding(DPC) achieves the sum rate capacity of Gaussian MIMO broadcast channel. The dirty paper coding is a technique forefficient transmission of digital data through a channel that is subject to some interference that is known to thetransmitter. The technique consists of precoding the data so as to cancel the effect of interference . The use of dirty papercoding closely achieves the sum-rate capacity region of broadcast channel. In MIMO fading environment, the so calleddegenerating channels or keyholes may exist that exhibit low partial fading correlation at both ends of the link but stillhave poor rank properties, and hence low ergodic capacity. The performance of dirty-paper coding over MIMO keyholechannels has been analyzed. The keyhole condition, where the MIMO channel has only one degree of freedom, impairsthe performance of the systems. Under these conditions, one may wish to design codes that are robust to this situation.
Hemant Jain, Purneshwari Varshney, “Capacity Improvement of MIMO Channel using Dirty Paper Coding”, International Journal of Advance Engineering and Research Development (IJAERD), Vol. 1, Issue 11, pp. 192-197, November 2014.
