QoS constrained power minimization in the MISO broadcast channel with imperfect CSI
نویسندگان
چکیده
منابع مشابه
QoS Constrained Power Minimization in the MISO Broadcast Channel with Imperfect CSI
We consider the design of linear precoders and receivers in a Multiple-Input Single-Output (MISO) Broadcast Channel (BC). We aim at minimizing the transmit power while fullfiling a set of per-user Quality-of-Service (QoS) constraints expressed in terms of per-user average rate requirements. The Channel State Information (CSI) is assumed to be perfectly known at the receivers but only partially ...
متن کاملProbability-constrained Power Optimization for Multiuser MISO Systems with Imperfect CSI: A Bernstein Approximation Approach
We consider power allocations in downlink cellular wireless systems where the basestations are equipped with multiple transmit antennas and the mobile users are equipped with single receive antennas. Such systems can be modeled as multiuser MISO systems. We assume that the multi-antenna transmitters employ some fixed beamformers to transmit data, and the objective is to optimize the power alloc...
متن کاملQoS Constrained Power Minimization in the Multiple Stream MIMO Broadcast Channel
This work addresses the design of optimal linear transmit filters for the Multiple Input-Multiple Output (MIMO) Broadcast Channel (BC) when several spatial streams are allocated to each user. We also consider that the Channel State Information (CSI) is perfect at the receivers but is only partial at the transmitter. A statistical model for the partial CSI is assumed and exploited for the filter...
متن کاملDelivery Time Minimization in Cache-Assisted Broadcast-Relay Wireless Networks with Imperfect CSI
An emerging trend of next generation communication systems is to provide network edges with additional capabilities such as storage resources in the form of caches to reduce file delivery latency. To investigate the impact of this technique on latency, we study the delivery time of a cache-aided broadcastrelay wireless network consisting of one central base station, M cache-equipped transceiver...
متن کاملDegrees-of-Freedom Region of MISO-OFDMA Broadcast Channel with Imperfect CSIT
This contribution investigates the Degrees-of-Freedom region of a two-user frequency correlated Multiple-Input-Single-Output (MISO) Broadcast Channel (BC) with imperfect Channel State Information at the transmitter (CSIT). We assume that the system consists of an arbitrary number of subbands, denoted as L. Besides, the CSIT state varies across users and subbands. A tight outer-bound is found as...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Signal Processing
سال: 2017
ISSN: 0165-1684
DOI: 10.1016/j.sigpro.2016.09.007