Optimistic DRX for machine-type communications

Chang, Hui-Ling; Lu, Shang-Lin; Chuang, Tsung-Hui; Lin, Ching-Fuh; Tsai, Meng-Hsun; Sou, Sok‐Ian

doi:10.1109/icc.2016.7510813

Cited by 8 publications

(3 citation statements)

References 6 publications

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“…DRX for LTE systems was studied in [7], while many researchers have studied the relationship between DRX sleep duration and energy efficiency [8], [9]. An increase in sleeping time results in the preservation of energy in communications.…”

Section: Related Workmentioning

confidence: 99%

Power Saving Techniques in 5G Technology for Multiple-Beam Communications

Shurdi

Rakipi

Lala

2023

JCOMSS

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The evolution of mobile technology and computation systems enables User Equipment (UE) to manage tremendous amounts of data transmission. As a result of current 5G technology, several types of wireless traffic in millimeter wave bands can be transmitted at high data rates with ultra-reliable and small latency communications. The 5G networks rely on directional beamforming and mmWave uses to overcome propagation and losses during penetration. To align the best beam pairs and achieve high data rates, beam-search operations are used in 5G. This combined with multibeam reception and highorder modulation techniques deteriorates the battery power of the UE. In the previous 4G radio mobile system, Discontinuous Reception (DRX) techniques were successfully used to save energy. To reduce the energy consumption and latency of multiple-beam 5G radio communications, we will propose in this paper the DRX Beam Measurement technique (DRX-BM). Based on the powersaving factor analysis and the delayed response, we will model DRX-BM into a semi-Markov process to reduce the tracking time. Simulations in MATLAB are used to assess the effectiveness of the proposed model and avoid unnecessary time spent on beam search. Furthermore, the simulation indicates that our proposed technique makes an improvement and saves 14% on energy with a minimum delay.

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Section: Related Workmentioning

confidence: 99%

Power Saving Techniques in 5G Technology for Multiple-Beam Communications

Shurdi

Rakipi

Lala

2023

JCOMSS

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“…The main reason for non-suitability is the directional communications in 5G networks, which require beamforming operation prior to data transmission [4]. Whereas, LTE-DRX mechanism does not include beam searching operation [19,20]. Figure 3 shows the concept of directional communication with multiple beams in 5G network.…”

Section: Non-compatibility Of Lte-drx For 5g Networkmentioning

confidence: 99%

Artificial Intelligence-Based Discontinuous Reception for Energy Saving in 5G Networks

et al. 2019

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5G is expected to deal with high data rates for different types of wireless traffic. To enable high data rates, 5G employs beam searching operation to align the best beam pairs. Beam searching operation along with high order modulation techniques in 5G, exhausts the battery power of user equipment (UE). LTE network uses discontinuous reception (DRX) with fixed sleep cycles to save UE energy. LTE-DRX in current form cannot work in 5G network, as it does not consider multiple beam communication and the length of sleep cycle is fixed. On the other hand, artificial intelligence (AI) has a tendency to learn and predict the packet arrival-time values from real wireless traffic traces. In this paper, we present AI based DRX (AI-DRX) mechanism for energy efficiency in 5G enabled devices. We propose AI-DRX algorithm for multiple beam communications, to enable dynamic short and long sleep cycles in DRX. AI-DRX saves the energy of UE while considering delay requirements of different services. We train a recurrent neural network (RNN) on two real wireless traces with minimum root mean square error (RMSE) of 5 ms for trace 1 and 6 ms for trace 2. Then, we utilize the trained RNN model in AI-DRX algorithm to make dynamic short or long sleep cycles. As compared to LTE-DRX, AI-DRX achieves 69 % higher energy efficiency on trace 1 and 55 % more energy efficiency on trace 2, respectively. The AI-DRX attains 70 % improvement in energy efficiency for trace 2 compared with Poisson packet arrival model for λ = 1 / 20 .

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“…Longer sleep state leads to higher energy efficiency, but potentially also causes larger transmission latency, since if new data packets arrive at the Tx, they have to wait for the Rx to enter the On Duration state to be aware of them. Using adaptive approaches to trade off energy efficiency and wake-up latency has been investigated in [7]- [9].…”

Section: Introductionmentioning

confidence: 99%

Discontinuous Reception for Multiple-Beam Communication

2019

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Discontinuous reception (DRX) techniques have successfully been proposed for energy savings in 4G radio access systems, which are deployed on legacy 2GHz spectrum bands with signal features of omnidirectional propagation. In upcoming 5G systems, higher frequency spectrum bands will also be utilized. Unfortunately higher frequency bands encounter more significant path loss, thus requiring directional beamforming to aggregate the radiant signal in a certain direction. We, therefore, propose a DRX scheme for multiple beam (DRXB) communication scenarios. The proposed DRXB scheme is designed to avoid unnecessary energy-and-time-consuming beam-training procedures, which enables longer sleep periods and shorter wake-up latency. We provide an analytical model to investigate the receiver-side energy efficiency and transmission latency of the proposed scheme. Through simulations, our approach is shown to have clear performance improvements over the conventional DRX scheme where beam training is conducted in each DRX cycle.

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Optimistic DRX for machine-type communications

Cited by 8 publications

References 6 publications

Power Saving Techniques in 5G Technology for Multiple-Beam Communications

Power Saving Techniques in 5G Technology for Multiple-Beam Communications

Artificial Intelligence-Based Discontinuous Reception for Energy Saving in 5G Networks

Discontinuous Reception for Multiple-Beam Communication

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