In this paper, we study the achievable rate and energy efficiency of analog, hybrid, digital combining (AC, HC, DC) for millimeter wave (mmW) receivers. We take into account power consumption all receiver components, not just analog-to-digital converters (ADCs), determine some practical limitations beamforming in each architecture, develop performance analysis charts that enable comparison different receivers simultaneously terms two metrics, namely, spectral (SE) (EE). present a...

Diversity, i.e. transmitting multiple replicas of a signal, may mitigate fading in wireless networks. Among other diversity techniques, the space multi-antenna systems is particularly interesting since it can complement forms diversity. The recent cooperative paradigm brings advantages to single antenna networked devices, which, through cooperation and sharing, form virtual arrays. However, complex technique research on this topic still its early stages. This paper aims at providing general...

With the shortage of spectrum in conventional cellular frequencies, millimeter-wave (mmWave) bands are being widely considered for use next-generation networks. Multihop relaying is likely to play a significant role mmWave systems self backhauling, range extension and improved robustness from path diversity. However, designing scheduling policies these challenging due need account both adaptive directional transmissions dynamic time-division duplexing schedules, which key enabling features...

This paper analyzes the impact of non-Gaussian multipath component (MPC) amplitude distributions on performance Compressed Sensing (CS) channel estimators for OFDM systems. The number dominant MPCs that any CS algorithm needs to estimate in order accurately represent is characterized. relates a Compressibility Index (CI) depends fourth moment MPC distribution. A connection between Mean Squared Error (MSE) estimation and distribution revealed shows smaller needed well-estimate channels when...

Millimeter wave (mmW) bands between 30 and 300 GHz have attracted considerable attention for next-generation cellular networks due to vast quantities of available spectrum the possibility very high-dimensional antenna ar-rays. However, a key issue in these systems is range: mmW signals are extremely vulnerable shadowing poor high-frequency propagation. Multi-hop relaying therefore natural technology such improve cell range edge rates without addition wired access points. This paper studies...

This paper addresses the modeling of specific Smart Grid (SG) communication requirements from a data networking research perspective, as general approach to study different access technologies suitable for last mile (LM). SGLM networks serve customers' Energy Services Interfaces. From functional descriptions SG, traffic model is developed. It then applied an architecture based on leased lines local broadband providers. permits consideration potential starvation domestic traffic, which...

This paper studies the maximum throughput achievable with optimal scheduling in multi-hop mmWave picocellular networks Multi-user Multiple-Input Multiple-Output (MU-MIMO) radios. MU-MIMO enables simultaneous transmission to multiple receivers (Space Division Multiplexing) and reception from transmitters Multiple Access). The main contribution is extension of Network Utility Maximization (NUM) framework for networks. We generalize classic proof that Maximum Back Pressure (MBP) NUM optimal....

This paper studies the cross-layer challenges and performance of Hybrid Beamforming (HBF) Multi-User Multiple-Input Multiple-Output (MU-MIMO) in 5G millimeter wave (mmWave) cellular networks with full-stack TCP/IP traffic MAC scheduling. While previous research on HBF MU-MIMO has focused link-level analysis full-buffer transmissions, this work reveals interplay between techniques higher layers protocol stack. To aim, prior evaluation mmWave been extended by including modeling HBF. Our...

With millimeter wave bands emerging as a strong candidate for 5G cellular networks, next-generation systems may be in unique position where spectrum is plentiful. To assess the potential value of this spectrum, paper derives scaling laws on per mobile downlink feasible rate with large bandwidth and number nodes, both Infrastructure Single Hop (ISH) Multi-Hop (IMH) architectures. It shown that, cases, there exist critical scalings above which increasing no longer increases node. These...

In this paper, we introduce a model for Multiple-Input Multiple-Output (MIMO) Space Division Multiple Access (SDMA) into the analysis of multi-hop millimeter wave network under classic Network Utility Maximization (NUM) framework with Maximum Back Pressure scheduling (MBP). We show that proof convergence MBP remains valid when allow scheduler to select multiple links same receiver in frame. Conventional single link per is traditionally implemented using Weighted Matching (MWM) algorithm over...

This paper addresses specific smart grid communication requirements. It considers a last-mile network based on an IEEE 802.16 cell deployed to cover group of customers and serve their Energy Services Interfaces. Based the requirements applications entities, we propose traffic priority model setup for WiMAX air interface. Finally, evaluate proposal using discrete-event simulator.

This paper introduces a Compressed Sensing (CS) estimation scheme for Orthogonal Time Frequency Space (OTFS) channels with sparse multipath. The OTFS waveform represents signals in two dimensional Delay-Doppler (DD) orthonormal basis. proposed model does not require the assumption that delays are integer multiples of sampling period. analysis shows non-integer delay and Doppler shifts channel cannot be accurately modelled by approximations. An Matching Pursuit Binary-division Refinement...

Rate Splitting (RS) has emerged as a flexible multiple-access scheme for Multi-User Multiple-Input Multiple-Output (MU-MIMO) systems, generalizing more conventional approaches such linear precoding or Non-Orthogonal Multiple Access (NOMA), and providing additional robustness against imperfect channel state information at the transmitter. Actual achievable rates cannot be pre-calculated when facing and/or outdated transmitter (CSIT), so practical real-time mechanisms in form of link...

This paper proposes and analyzes a mmWave sparse channel estimation technique for OFDM systems that uses the Orthogonal Matching Pursuit (OMP) algorithm. greedy algorithm retrieves one additional multipath component (MPC) per iteration until stop condition is met. We obtain an analytical approximation OMP error variance grows with number of retrieved MPCs (iterations). The estimator outperforms classic maximum-likelihood (ML) non-sparse by factor approximately 2L̂/M where L̂ (iterations) M...

The availability of very wide spectrum in millimeter wave bands combined with large antenna arrays and ultra-dense networks raises two basic questions: What is the true value overly abundant degrees freedom how can be designed to fully exploit them? This paper determines capacity scaling cellular as a function bandwidth, area, number antennas, base station density. It found that network has fundamental bandwidth limit, beyond which becomes power-limited. An infrastructure multi-hop protocol...

In this article we propose solutions to diverse conflicts that result from the deployment of (still immature) relay node (RN) technology in LTE-A networks. These and their possible have been observed by implementing standard-compliant functionalities on Vienna simulator. As an original experimental approach, model realistic RN operation, taking into account transmitters are not active all time due half-duplex operation. We rearranged existing elements simulator a manner emulates behavior,...

This paper proposes link scheduling and power allocation algorithms for mmWave picocellular integrated access backhaul networks. The proposed algorithm does not assume that interference is negligible takes it into account in the solution. supports any state of art multi-user MIMO hybrid beamforming schemes at physical layer. subproblems are solved using two separate simulated annealing (SA) which can also be individually combined with other pre-existing suboptimal subproblem. Particularly,...

In non-coherent wideband fading channels where energy rather than spectrum is the limiting resource, peaky and non-peaky signaling schemes have long been considered species apart, as first approaches asymptotically capacity of a AWGN channel with same average SNR, whereas second reaches peak rate at some finite critical bandwidth then falls to zero grows infinity. this paper it shown that distinction in fact an artifact limited attention paid past product between fraction time use. This...

This paper studies noncoherent wideband systems with a single antenna transmitter and multiple receiver many elements, under signaling peak-to-average power ratio constraints. The analysis considers the scaling behavior of capacity achievable rates by letting both number antennas bandwidth go to infinity jointly. In contrast prior work on input output (SISO) channels without a-priori channel state information, it is shown that sufficiently large receive can make up for vanishingly small SNR...

The scaling of coherent and non-coherent channel capacity is studied in a single-input multiple-output (SIMO) block Rayleigh fading as both the bandwidth number receiver antennas go to infinity jointly with transmit power fixed. transmitter has no state information (CSI), while may have genie-provided CSI (coherent receiver), or statistics only (non-coherent receiver). Our results show that if available smaller than threshold which proportional (up leading order terms) square root antennas,...

This paper studies mutual information in a novel scenario combining cooperative diversity and cognitive radio based on spectrum leasing. In the there is primary transmitter subject to random channel fading, with full rights available, secondary without any rights, which offers its cooperation exchange for share of resulting resource gains. Two decision-making schemes, different levels knowledge, are considered transmitter. These knowledge statistics fading (averages) instantaneous state. The...

In future mmWave wireless system, fully digital receivers may have an excessive power consumption at the Analog to Digital Converters (ADC), even if lower resolution ADCs are employed. We propose optimize ADC exploiting sparse propagation in mmWave. identify and assign more bits antennas that capture stronger incoming signals, allocate fewer see mostly noise. order facilitate a potential practical implementation, we constrain allocation problem so number of assigned each antenna can take...

In this paper, we consider a novel cellular network connection paradigm, known as user-provided (UPN), where users share their connectivity with others. Motivated by the recently launched traded data plans, Wireless Service Providers allow to sell and buy leftover capacities (caps) from each other, have developed dynamic pricing scheme for such network. Optimal prices volume of are derived market equilibrium. The proposed provides global reference price, trading price local markets,...

This paper proposes a radio simultaneous location and mapping (radio-SLAM) scheme based on sparse multipath channel estimation. By leveraging estimation schemes at millimeter wave bands, namely high resolution estimates of the multi-path angle arrival (AoA), time difference (TDoA), departure (AoD), we develop radio-SLAM algorithm that operates without any requirements clock synchronization, receiver orientation knowledge, multiple anchor points, or two-way protocols. Thanks to AoD...

Receivers for mmWave systems suffer from high power consumption in Analog to Digital Converters (ADC), and there is a need compare the three major receiver architectures: Analog, Hybrid Combining (AC, HC DC). Moreover, specific figure of merit ADCs varies significantly between different component designs literature, so that comparisons performed one ADC model - no matter how representative state art do not necessarily carry over other with figures merit. In this work, we formulate comparison...