Python代码实现基于K-MEANS的LEACH协议构建
时间: 2024-01-05 15:02:07 浏览: 74
以下是基于Python实现基于K-MEANS的LEACH协议构建的代码样例:
```python
import random
import math
# 定义节点类
class Node:
def __init__(self, x, y, energy):
self.x = x # 节点的x坐标
self.y = y # 节点的y坐标
self.energy = energy # 节点的能量
self.cluster = None # 节点所在的簇
self.is_cluster_head = False # 是否是簇首节点
# 定义LEACH协议类
class LEACH:
def __init__(self, node_list, k):
self.node_list = node_list # 节点列表
self.k = k # 簇的个数
self.cluster_head_list = [] # 簇首节点列表
# K-MEANS聚类算法
def k_means(self):
# 随机选择k个节点作为初始簇首节点
cluster_head_index_list = random.sample(range(len(self.node_list)), self.k)
for i in range(len(self.node_list)):
node = self.node_list[i]
min_distance = float('inf')
for j in range(self.k):
cluster_head = self.node_list[cluster_head_index_list[j]]
distance = math.sqrt((node.x - cluster_head.x) ** 2 + (node.y - cluster_head.y) ** 2)
if distance < min_distance:
min_distance = distance
node.cluster = j
if node.cluster_head == None:
node.cluster_head = self.node_list[cluster_head_index_list[node.cluster]]
# 更新簇首节点
for i in range(self.k):
cluster_head = None
min_energy = float('inf')
for node in self.node_list:
if node.cluster == i and node.energy < min_energy:
cluster_head = node
min_energy = node.energy
if cluster_head != None:
cluster_head.is_cluster_head = True
self.cluster_head_list.append(cluster_head)
# LEACH协议
def leach(self):
# 第一轮选举簇首节点
for node in self.node_list:
if node.is_cluster_head == False:
if random.random() < node.energy / 10:
node.is_cluster_head = True
self.cluster_head_list.append(node)
# 其他轮选举簇首节点
for t in range(2, 100):
for node in self.node_list:
if node.is_cluster_head == False:
p = 0.1 * (1 - float(t % (1 / 0.1)) / (1 / 0.1))
if random.random() < p:
node.is_cluster_head = True
self.cluster_head_list.append(node)
# 簇首节点收集数据
for cluster_head in self.cluster_head_list:
for node in self.node_list:
if node.cluster_head == cluster_head and node.is_cluster_head == False:
# 进行数据传输等操作
pass
# 簇首节点更新
for node in self.node_list:
if node.is_cluster_head == True:
node.is_cluster_head = False
self.cluster_head_list = []
```
以上是一个简单的基于Python实现基于K-MEANS的LEACH协议构建的代码样例,仅供参考。具体实现需要根据实际情况进行修改和优化。
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