Distributed MIMO for Cellular Networks with Multihop Transmission Protocols
AuthorsIngmar Hammerström, Marc Kuhn, and Armin Wittneben
ReferenceAsilomar Conference on Signals, Systems, and Computers 2006, Pacific Grove, CA, Oct. 2006.
AbstractWe consider the downlink in a MIMO cellular network utilizing two-hop transmission protocols with fixed infrastructure relay stations to enhance coverage and data rates in a cell. We investigate the potential of relaying protocols in the case when a mobile station is in the communication range of two relays but not in the range of the base station. Since the relays are mounted at fixed positions we assume that the base station has knowledge about the channels to the relays which enables spatial precoding of the transmit data. We show that in the first hop the use of MIMO broadcast coding techniques, where the base station transmits only a subset of the data which is intended for the mobile station to each relay, has a superior performance compared to a MIMO multicast, where the whole data is transmitted to both relays.
Keywordsmulti-hop, cellular network, MIMO, relaying, broadcast channel, multiple access channel
Download this document:
Copyright Notice: © 2006 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.