In this paper we study the effect of partial channel state information (CSI) on the performance of dirty paper coding (DPC) schemes. We derive a novel lower bound that shows that the effect of the CSI is upper bounded by the effect of an additive white Gaussian noise with an appropriate variance. The bound is proved using a constructive proof that shows that the predicted rates are achievable using high dimensional lattice modulo precoding schemes. Simulation results demonstrate the usefulness of the bound. The derived bound is useful for the characterization of the interference mitigation performance in partial CSI scenarios such as FDD networks with finite rate feedback, uplink downlink capacity balancing in cooperative cellular networks, etc'.
|Title of host publication||2014 IEEE 15th International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2014|
|Publisher||Institute of Electrical and Electronics Engineers Inc.|
|Number of pages||5|
|State||Published - 31 Oct 2014|
|Event||2014 15th IEEE International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2014 - Toronto, Canada|
Duration: 22 Jun 2014 → 25 Jun 2014
|Name||IEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC|
|Conference||2014 15th IEEE International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2014|
|Period||22/06/14 → 25/06/14|
Bibliographical notePublisher Copyright:
© 2014 IEEE.
- Cooperative transmission
- channel state information
- dirty paper coding
- interference mitigation