Conference paper Open Access

Broadcast-Multicast Single Frequency Network versus Unicast in Cellular Systems

Juan Vargas; Cedric Thienot ´; Christophe Burdinat; Xavier Lagrange


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{
  "publisher": "Zenodo", 
  "DOI": "10.5281/zenodo.4299948", 
  "language": "aig", 
  "title": "Broadcast-Multicast Single Frequency Network versus Unicast in Cellular Systems", 
  "issued": {
    "date-parts": [
      [
        2019, 
        10, 
        13
      ]
    ]
  }, 
  "abstract": "<p>Video is an important factor of the load in cellular<br>\nnetworks due to the growing popularity of streaming and<br>\nlinear services. In unicast transmission mode, the same data is<br>\ntransmitted as many times as the number of receivers demanding<br>\nthe same video content. Conversely, in broadcast transmissions<br>\nusing the Single Frequency Network (SFN) technique, a set of<br>\nbase stations perform synchronized transmission of the same<br>\nwaveform to a potentially infinite number of users. The objective<br>\nof this study is to compare the performance of unicast and<br>\nbroadcast. More precisely, we determine the minimum number<br>\nof users downloading the same data from which a broadcast<br>\ntransmission is more efficient than multiple unicast transmissions.<br>\nIn this paper, a model to calculate the Signal-to-Interference-plusNoise Ratio (SINR) in unicast and broadcast modes is presented,<br>\nconsidering Poisson distributed base stations, path loss, fading,<br>\nshadowing, trisectored antennas, SFN with a different number<br>\nof base stations and beamforming in unicast mode. Results show<br>\nthat even when an SFN is formed by just 2 base stations and<br>\nunicast transmissions are performed using beamforming with 8<br>\nantennas per sector, broadcast outperforms unicast when there<br>\nare at least 8 users per cell demanding the same content.</p>", 
  "author": [
    {
      "family": "Juan Vargas"
    }, 
    {
      "family": "Cedric Thienot \u00b4"
    }, 
    {
      "family": "Christophe Burdinat"
    }, 
    {
      "family": "Xavier Lagrange"
    }
  ], 
  "type": "paper-conference", 
  "id": "4299948"
}
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