On uplink-downlink sum-MSE duality of multi-hop MIMO relay channel

Author

Cirik, Ali Cagatay ; Khandaker, M.R.A. ; Yue Rong ; Yingbo Hua

Author_Institution

Dept. of Electr. Eng., Univ. of California Riverside, Riverside, CA, USA

fYear

2014

fDate

22-25 June 2014

Firstpage

279

Lastpage

283

Abstract

The uplink and downlink sum mean-squared error (MSE) duality for multi-hop amplify-and-forward (AF) multiple-input multiple-output (MIMO) relay channels is established, which is a generalization of several sum-MSE duality results. Unlike the previous results that prove the duality by computing the MSEs for each stream directly, we introduce an interesting perspective to the relation of the uplink-downlink duality based on the Karush-Kuhn-Tucker (KKT) conditions associated with uplink and downlink transceiver design optimization problems.

Keywords

MIMO communication; amplify and forward communication; mean square error methods; optimisation; relay networks (telecommunication); Karush-Kuhn-Tucker conditions; multihop AF MIMO relay channel; multihop amplify-and-forward multiple-input multiple-output relay channels; uplink-downlink sum-MSE duality; uplink-downlink transceiver design optimization problems; Downlink; MIMO; Relays; Transceivers; Uplink; Vectors; Wireless communication; Amplify-and-forward; MIMO relay; duality;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing Advances in Wireless Communications (SPAWC), 2014 IEEE 15th International Workshop on

Conference_Location

Toronto, ON

Type

conf

DOI

10.1109/SPAWC.2014.6941634

Filename

6941634