Kiran Kuchi

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— In this paper we propose a transmission concept that combines phase hopping and space-time coding to enable efficient multi-antenna transmission. The proposed space-time code can be considered as a non-orthogonal construction, a sibling of the ABBA code proposed in [7]. The transmission concept proposed here has the advantage that is can be utilized on(More)
—In this paper we consider a multiuser spatial multi-plexing (SM) cellular network, where Nt streams are transmitted to Nt users in the cell. Specifically, we obtain the coverage and rate expressions for a system employing zero-forcing (ZF) receiver. Compared to single stream transmission (SST), it is interesting to see that SM degrades the rate for a(More)
Cooperation in a cellular network is seen as a key technique in managing other cell interference to observe a gain in achievable rate. In this paper, we present the achievable rate regions for a cloud radio network using a sub-optimal zero forcing equalizer with dirty paper precoding. We show that when complete channel state information is available at the(More)
In this paper we analyze the performance of single stream and multi-stream spatial multiplexing (SM) systems employing opportunistic scheduling in the presence of interference. In the proposed downlink framework, every active user reports the post-processing signal-to-interference-plus-noise-power-ratio (post-SINR) or the receiver specific mutual(More)