西北师范大学学报（自然科学版）
西北師範大學學報（自然科學版）
서북사범대학학보（자연과학판）
JOURNAL OF NORTHWEST NORMAL UNIVERSITY(NATURAL SCIENCE)
2015年
4期
42-45,57
,共5页
机会网络%邻居变化率%传输性能%自适应转发
機會網絡%鄰居變化率%傳輸性能%自適應轉髮
궤회망락%린거변화솔%전수성능%자괄응전발
opportunistic network%change rate of neighbors%transmission performance%adaptive transmission
为了提高机会网络传输成功率，降低传输开销，提出了一种基于节点差异性的机会网络数据转发算法。选择剩余能量大、邻居更新速度快的节点作为中继节点，根据节点对的邻居相似度自适应调节阈值，以满足不同网络环境下的转发要求。仿真实验表明，此算法与其他算法相比，在较低的传输延迟下大大提高了传输的成功率，降低了网络传输开销。
為瞭提高機會網絡傳輸成功率，降低傳輸開銷，提齣瞭一種基于節點差異性的機會網絡數據轉髮算法。選擇剩餘能量大、鄰居更新速度快的節點作為中繼節點，根據節點對的鄰居相似度自適應調節閾值，以滿足不同網絡環境下的轉髮要求。倣真實驗錶明，此算法與其他算法相比，在較低的傳輸延遲下大大提高瞭傳輸的成功率，降低瞭網絡傳輸開銷。
위료제고궤회망락전수성공솔，강저전수개소，제출료일충기우절점차이성적궤회망락수거전발산법。선택잉여능량대、린거경신속도쾌적절점작위중계절점，근거절점대적린거상사도자괄응조절역치，이만족불동망락배경하적전발요구。방진실험표명，차산법여기타산법상비，재교저적전수연지하대대제고료전수적성공솔，강저료망락전수개소。
In order to improve the success rate of network transmission , reduce transport costs , a novel data transmission algorithm of opportunistic networks based on nodes'difference is proposed . Firstly , the node residual energy and neighbor update speed is selected as a relay node ;and then the threshold is adaptively adjusted according to neighbor similarity node to meet the forwarding requirements under the different network environment . The simulation results show that this proposed algorithm not only has improved the network data transmission probability and reduced the delay of network transmission , and greatly reduce the transmission number of nodes and sharply reduce the network cost compared with other opportunistic network data forwarding algorithms .
