English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

We consider the coordinated downlink beamforming problem in a cellularnetwork with the base stations (BSs) equipped with multiple antennas, and witheach user equipped with a single antenna. The BSs cooperate in sharing theirlocal interference information, and they aim at maximizing the sum rate of theusers in the network. A set of new lower bounds (one bound for each BS) of thenon-convex sum rate is identified. These bounds facilitate the development of aset of algorithms that allow the BSs to update their beams by optimizing theirrespective lower bounds. We show that when there is a single user per-BS, thelower bound maximization problem can be solved exactly with rank-1 solutions.In this case, the overall sum rate maximization problem can be solved to a KKTpoint. Numerical results show that the proposed algorithms achieve high systemthroughput with reduced backhaul information exchange among the BSs.

Lower Bounds Optimization for Coordinated Linear Transmission Beamformer Design in Multicell Network Downlink