Improving Data Rate Performance of Non-Orthogonal Multiple Access Based Underwater Acoustic Sensor Networks

  • Veerapu GouthamEmail author
  • Gajjala Kalyan Kumar Reddy
  • Yeluri Gift Babu
  • V. P. Harigovindan
Conference paper
Part of the Lecture Notes on Data Engineering and Communications Technologies book series (LNDECT, volume 35)


In this article, initially we propose an optimal packet size selection scheme for reduced channel time wastage for Non-Orthogonal Multiple Access (NOMA) in Underwater Acoustic Sensor Networks (UASNs). Existing conventional NOMA technique achieves the sum rate without considering the traffic generation in UASNs, which leads to wastage of resources due to unequal transmission times in paired transmission. In contrast, the proposed scheme overcomes this problem by making equal transmission time slots for both weak and strong users using optimal data packet sizes to avoid the wastage of resources. Further, we propose an optimal power allocation for weak and strong users with respect to the distance between transceiving nodes by using particle swarm optimization. The analytical results clearly show that the proposed scheme for NOMA in UASNs significantly improves the data rate performance in comparison with the existing conventional NOMA technique.


Non-Orthogonal Multiple Access Underwater Acoustic Sensor Networks Overall data rate 


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Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  • Veerapu Goutham
    • 1
    Email author
  • Gajjala Kalyan Kumar Reddy
    • 1
  • Yeluri Gift Babu
    • 1
  • V. P. Harigovindan
    • 1
  1. 1.Department of Electronics and Communication EngineeringNational Institute of Technology PuducherryKaraikalIndia

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