Age and Energy Tradeoff for Short Packet Based Two-Hop Decode-and-Forward Relaying Networks

Real-time and energy-efficient transmissions are two critical demands for status update systems, however it is difficult to meet these requirements simultaneously. This paper focuses on the tradeoff between the average age of information (AoI) and the average energy cost (EC) for two-hop decode-and-forward (DF) relaying networks with short packet transmissions. Both the partial relay selection (PRS) and max-min relay selection (MMRS) schemes are considered. The expressions for the average AoI and the average EC of two-hop relaying networks are derived, and the age-energy tradeoff is also achieved by minimizing the weighted sum of them. Numerical simulations show that both PRS and MMRS schemes have their own advantages to minimize the age and energy cost under different channel conditions, where MMRS is a fairness scheme that takes the channel conditions of two hops into account. In addition, an optimal packet length can always be found to tradeoff the average AoI and average EC in two-hop relaying networks.

[1]  Xiang Chen,et al.  Energy-Age Tradeoff in Status Update Communication Systems with Retransmission , 2018, 2018 IEEE Global Communications Conference (GLOBECOM).

[2]  Branka Vucetic,et al.  Timely Status Update in Internet of Things Monitoring Systems: An Age-Energy Tradeoff , 2019, IEEE Internet of Things Journal.

[3]  Roy D. Yates,et al.  Real-time status: How often should one update? , 2012, 2012 Proceedings IEEE INFOCOM.

[4]  Wenjuan Xu,et al.  Effective User-Pair Association Schemes for Relay-Based Multi-tier Heterogeneous Networks with Physical Layer Security , 2020, Wirel. Pers. Commun..

[5]  H. Vincent Poor,et al.  Channel Coding Rate in the Finite Blocklength Regime , 2010, IEEE Transactions on Information Theory.

[6]  Roy D. Yates,et al.  Timely updates over an erasure channel , 2017, 2017 IEEE International Symposium on Information Theory (ISIT).

[7]  Vo Nguyen Quoc Bao,et al.  Performance Analysis of Partial Relay Selection Networks with Short Packet Communications , 2019, 2019 6th NAFOSTED Conference on Information and Computer Science (NICS).

[8]  Xiao Ma,et al.  Is the Packetized Transmission Efficient? An Age-Energy Perspective , 2020, IEEE INFOCOM 2020 - IEEE Conference on Computer Communications Workshops (INFOCOM WKSHPS).

[9]  Georgios B. Giannakis,et al.  High-Performance Cooperative Demodulation With Decode-and-Forward Relays , 2007, IEEE Transactions on Communications.

[10]  Xiao Ma,et al.  Age and Energy Analysis for LDPC Coded Status Update With and Without ARQ , 2020, IEEE Internet of Things Journal.

[11]  Shuai Zhang,et al.  Application-Oriented Scheduling for Optimizing the Age of Correlated Information: A Deep-Reinforcement-Learning-Based Approach , 2020, IEEE Internet of Things Journal.

[12]  Longxiang Yang,et al.  Min–Max User-Pair Association Criterion and Outage Performance of K-Tier Relay-Based Heterogeneous Networks , 2019, Wirel. Pers. Commun..

[13]  Sennur Ulukus,et al.  Age-Minimal Transmission in Energy Harvesting Two-Hop Networks , 2017, GLOBECOM 2017 - 2017 IEEE Global Communications Conference.

[14]  Sennur Ulukus,et al.  Timely Updates in Energy Harvesting Two-Hop Networks: Offline and Online Policies , 2018, IEEE Transactions on Wireless Communications.

[15]  Abolfazl Razi,et al.  Maximizing Energy Efficiency of Cognitive Wireless Sensor Networks With Constrained Age of Information , 2017, IEEE Transactions on Cognitive Communications and Networking.

[16]  Anantha Chandrakasan,et al.  Upper bounds on the lifetime of sensor networks , 2001, ICC 2001. IEEE International Conference on Communications. Conference Record (Cat. No.01CH37240).

[17]  Roy D. Yates,et al.  Status updates through M/G/1/1 queues with HARQ , 2017, 2017 IEEE International Symposium on Information Theory (ISIT).

[18]  Harpreet S. Dhillon,et al.  On the Role of Age of Information in the Internet of Things , 2018, IEEE Communications Magazine.

[19]  Xiao Ma,et al.  Age-Energy Tradeoff of Short Packet Based Transmissions in Multicast Networks with ARQ , 2020, 2020 IEEE 91st Vehicular Technology Conference (VTC2020-Spring).