Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 11 of 11 for “"sum-rate maximization"”.
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Sum-rate maximization for two-way active channels.
… over a reciprocal two-way active channel. Assuming the channel is reciprocal, we consider the sum-rate maximization problem under the assumption that the powers of transceivers as well as the channel power are limited. The goal is to jointly optimize the power of each subchannel as well as …
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Sum-rate maximization for two-way active channel with unequal subchannel noise powers
… as active channels. We study the problem of sum-rate maximization of a two-way active channel with unequal noise powers over the subchannels, conveying information between two sources (two transceivers that can transmit and receive signals), subject to three constraints. The first two …
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Sum-rate maximization in multi-RIS multi-carrier systems through active power allocation and passive beamforming
… we propose a novel approach to solving the sum-rate maximization problem in a multi-RIS environment within an orthogonal frequency division multiplexing (OFDM) framework. Reconfigurable intelligent surfaces (RIS) offer low-cost and energy-efficient solutions for enhancing wireless …
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Joint channel pairing and power allocation optimization in two-way multichannel relaying.
… as time-division broadcast (TDBC) relaying strategies. We investigate the problem of joint subchannel pairing and power allocation to maximize the achievable sum-rate in the network, under an individual power budget at each node. To solve this challenging joint optimization problem, an …
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Sum-rate optimal network beamforming and power allocation for single-carrier asynchronous bidirectional relay network
We study the problem of sum-rate maximization, under a total transmit power budget, for an asynchronous single-carrier bidirectional (two-way) network. The network consists of two single-antenna transceivers which wish to exchange information with the help of multiple single-antenna …
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Resource management in wireless heterogeneous networks: an optimization perspective
… HetNets. Our emphasis is mainly on cross layer strategies. Various aspects of cross layer resource management can be formulated as optimization problems. Throughout this dissertation, we use advanced optimization techniques to develop algorithms that are capable of efficiently solving these …
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Optimal Sum-Rate of Multi-Band MIMO Interference Channel
… capacity of an IC is to maximize the achievable sum-rate by treating interference as Gaussian noise, which is considered optimal in low-interference scenarios. While the sum-rate of the single-band SISO IC is relatively well understood, it is not so when the users have multiple-bands and …
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Centralized and distributed resource allocation with applications to signal processing in communications
… describe next. First, we study the maximum sum-utility achieved when a noncooperative approach is used to allocate the spectrum in a communication system adopting a dynamic spectrum management framework. In particular, we turn our attention to the case in which the users in the system are …
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Joint relay beamforming and transceiver processing in multiuser relay network
… cancellation (SIC) as our decoding strategy to further enhance sum-rate. Simulation results show that the proposed iterative algorithm yields higher achievable sum-rate than the existing partial ZF (PZF) method which uses sum-rate maximization as the design objective.
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MSE-based Linear Transceiver Designs for Multiuser MIMO Wireless Communications
… We first consider the design of transceivers assuming channel state information (CSI) at the transmitter. We consider minimization of the sum-MSE over all users subject to a sum power constraint on each transmission. Using MSE duality, we solve a computationally simpler convex problem in a …
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Power allocation and linear precoding for wireless communications with finite-alphabet inputs
… proposes a new approach to maximizing data rate/throughput of practical communication system/networks through linear precoding and power allocation. First, the mutual information or capacity region is derived for finite-alphabet inputs such as phase-shift keying (PSK), pulse-amplitude …