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Reconfigurable encoding arrays for reduced outage probability sensor networks

  • US 10,404,409 B2
  • Filed: 12/11/2014
  • Issued: 09/03/2019
  • Est. Priority Date: 12/11/2014
  • Status: Active Grant
First Claim
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1. A method of communicating data symbols in a wireless network, the wireless network comprising a concentrator node, a first data generating node, and a plurality of other data generating nodes, the method comprising:

  • receiving, at the first data generating node, data symbols from the other data generating nodes;

    receiving, at the first data generating node, an indication of an arrangement of an array code from the concentrator node;

    receiving, at the first data generating node, a request from the concentrator node for data symbols from the wireless network; and

    transmitting, by the first data generating node to the concentrator node, a data symbol generated by the first data generating node and the parity symbol,wherein the array code comprises a plurality of entries, andwherein each entry indicates the dependence of a parity symbol generated by a node on the data symbols received from other nodes, and the arrangement of the array code indicates which entry corresponds to which data generating node of the wireless network, the arrangement of the array code being determined by;

    receiving, at the concentrator node, a plurality of link-quality indications, wherein each link-quality indication represents the quality of the wireless communication link between two nodes of the plurality of data generating nodes; and

    assigning an entry of the array code to each data generating node in a manner that minimizes an outage probability of the wireless network, wherein the outage probability represents the probability that parity symbols cannot be formed by the plurality of data generating nodes and is based on the plurality of link-quality indications received by the concentrator node.

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